5 * [Enter new changes just after this line - do not remove this line]
9 2011-08-26: Simon Goldschmidt
10 * etharp.c: ETHARP_SUPPORT_VLAN: add support for an external VLAN filter
11 function instead of only checking for one VLAN (define ETHARP_VLAN_CHECK_FN)
13 2011-07-21: Simon Goldschmidt (patch by hanhui)
14 * ip4.c, etharp.c, pbuf.h: bug #33634 ip_forward() have a faulty behaviour:
15 Added pbuf flags to mark incoming packets as link-layer broadcast/multicast.
16 Also added code to allow ip_forward() to forward non-broadcast packets to
17 the input netif (set IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1).
19 2011-07-21: Simon Goldschmidt
20 * sockets.c, opt.h: (bug #30185): added LWIP_FIONREAD_LINUXMODE that makes
21 ioctl/FIONREAD return the size of the next pending datagram.
23 2011-06-26: Simon Goldschmidt (patch by Cameron Gutman)
24 * tcp.c, tcp_out.c: bug #33604: added some more asserts to check that
27 2011-05-25: Simon Goldschmidt
28 * again nearly the whole stack, renamed ip.c to ip4.c, ip_addr.c to ip4_addr.c,
29 combined ipv4/ipv6 inet_chksum.c, added ip.h, ip_addr.h: Combined IPv4
30 and IPv6 code where possible, added defines to access IPv4/IPv6 in non-IP
31 code so that the code is more readable.
33 2011-05-17: Patch by Ivan Delamer (only checked in by Simon Goldschmidt)
34 * nearly the whole stack: Finally, we got decent IPv6 support, big thanks to
35 Ivan! (this is work in progress: we're just post release anyway :-)
37 2011-05-14: Simon Goldschmidt (patch by Stéphane Lesage)
38 * tcpip.c/.h: patch #7449 allow tcpip callback from interrupt with static
44 2011-08-24: Simon Goldschmidt
45 * inet6.h: fixed bug #34124 struct in6_addr does not conform to the standard
47 2011-08-24: Simon Goldschmidt
48 * api_msg.c, sockets.c: fixed bug #33956 Wrong error returned when calling
49 accept() on UDP connections
51 2011-08-24: Simon Goldschmidt
52 * sockets.h: fixed bug #34057 socklen_t should be a typedef
54 2011-08-24: Simon Goldschmidt
55 * pbuf.c: fixed bug #34112 Odd check in pbuf_alloced_custom (typo)
57 2011-08-24: Simon Goldschmidt
58 * dhcp.c: fixed bug #34122 dhcp: hostname can overflow
60 2011-08-24: Simon Goldschmidt
61 * netif.c: fixed bug #34121 netif_add/netif_set_ipaddr fail on NULL ipaddr
63 2011-08-22: Simon Goldschmidt
64 * tcp_out.c: fixed bug #33962 TF_FIN not always set after FIN is sent. (This
65 merely prevents nagle from not transmitting fast after closing.)
67 2011-07-22: Simon Goldschmidt
68 * api_lib.c, api_msg.c, sockets.c, api.h: fixed bug #31084 (socket API returns
69 always EMSGSIZE on non-blocking sockets if data size > send buffers) -> now
70 lwip_send() sends as much as possible for non-blocking sockets
72 2011-07-22: Simon Goldschmidt
73 * pbuf.c/.h, timers.c: freeing ooseq pbufs when the pbuf pool is empty implemented
74 for NO_SYS==1: when not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ()
75 at regular intervals from main level.
77 2011-07-21: Simon Goldschmidt
78 * etharp.c: fixed bug #33551 (ARP entries may time out although in use) by
79 sending an ARP request when an ARP entry is used in the last minute before
82 2011-07-04: Simon Goldschmidt
83 * sys_arch.txt: Fixed documentation after changing sys arch prototypes for 1.4.0.
85 2011-06-26: Simon Goldschmidt
86 * tcp.c: fixed bug #31723 (tcp_kill_prio() kills pcbs with the same prio) by
87 updating its documentation only.
89 2011-06-26: Simon Goldschmidt
90 * mem.c: fixed bug #33545: With MEM_USE_POOLS==1, mem_malloc can return an
93 2011-06-26: Simon Goldschmidt
94 * mem.c: fixed bug #33544 "warning in mem.c in lwip 1.4.0 with NO_SYS=1"
102 2011-03-27: Simon Goldschmidt
103 * tcp_impl.h, tcp_in.c, tcp_out.c: Removed 'dataptr' from 'struct tcp_seg' and
104 calculate it in tcp_zero_window_probe (the only place where it was used).
106 2010-11-21: Simon Goldschmidt
107 * dhcp.c/.h: Added a function to deallocate the struct dhcp from a netif
110 2010-07-12: Simon Goldschmidt (patch by Stephane Lesage)
111 * ip.c, udp.c/.h, pbuf.h, sockets.c: task #10495: Added support for
112 IP_MULTICAST_LOOP at socket- and raw-API level.
114 2010-06-16: Simon Goldschmidt
115 * ip.c: Added an optional define (LWIP_IP_ACCEPT_UDP_PORT) that can allow
116 link-layer-addressed UDP traffic to be received while a netif is down (just
117 like DHCP during configuration)
119 2010-05-22: Simon Goldschmidt
120 * many many files: bug #27352: removed packing from ip_addr_t, the packed
121 version is now only used in protocol headers. Added global storage for
122 current src/dest IP address while in input functions.
124 2010-05-16: Simon Goldschmidt
125 * def.h: task #10391: Add preprocessor-macros for compile-time htonl
126 calculation (and use them throughout the stack where applicable)
128 2010-05-16: Simon Goldschmidt
129 * opt.h, memp_std.h, memp.c, ppp_oe.h/.c: PPPoE now uses its own MEMP pool
130 instead of the heap (moved struct pppoe_softc from ppp_oe.c to ppp_oe.h)
132 2010-05-16: Simon Goldschmidt
133 * opt.h, memp_std.h, dns.h/.c: DNS_LOCAL_HOSTLIST_IS_DYNAMIC uses its own
134 MEMP pool instead of the heap
136 2010-05-13: Simon Goldschmidt
137 * tcp.c, udp.c: task #6995: Implement SO_REUSEADDR (correctly), added
138 new option SO_REUSE_RXTOALL to pass received UDP broadcast/multicast
139 packets to more than one pcb.
141 2010-05-02: Simon Goldschmidt
142 * netbuf.h/.c, sockets.c, api_msg.c: use checksum-on-copy for sending
143 UDP data for LWIP_NETIF_TX_SINGLE_PBUF==1
145 2010-04-30: Simon Goldschmidt
146 * udp.h/.c, pbuf.h/.c: task #6849: added udp_send(_to/_if) functions that
147 take a precalculated checksum, added pbuf_fill_chksum() to copy data
148 into a pbuf and at the same time calculating the checksum for that data
150 2010-04-29: Simon Goldschmidt
151 * ip_addr.h, etharp.h/.c, autoip.c: Create overridable macros for copying
152 2-byte-aligned IP addresses and MAC addresses
154 2010-04-28: Patch by Bill Auerbach
155 * ip.c: Inline generating IP checksum to save a function call
157 2010-04-14: Simon Goldschmidt
158 * tcpip.h/.c, timers.c: Added an overridable define to get informed when the
159 tcpip_thread processes messages or timeouts to implement a watchdog.
161 2010-03-28: Simon Goldschmidt
162 * ip_frag.c: create a new (contiguous) PBUF_RAM for every outgoing
163 fragment if LWIP_NETIF_TX_SINGLE_PBUF==1
165 2010-03-27: Simon Goldschmidt
166 * etharp.c: Speedup TX by moving code from find_entry to etharp_output/
167 etharp_query to prevent unnecessary function calls (inspired by
170 2010-03-20: Simon Goldschmidt
171 * opt.h, tcpip.c/.h: Added an option to disable tcpip_(un)timeout code
172 since the linker cannot do this automatically to save space.
174 2010-03-20: Simon Goldschmidt
175 * opt.h, etharp.c/.h: Added support for static ARP table entries
177 2010-03-14: Simon Goldschmidt
178 * tcp_impl.h, tcp_out.c, inet_chksum.h/.c: task #6849: Calculate checksum
179 when creating TCP segments, not when (re-)transmitting them.
181 2010-03-07: Simon Goldschmidt
182 * sockets.c: bug #28775 (select/event_callback: only check select_cb_list
183 on change) plus use SYS_LIGHTWEIGHT_PROT to protect the select code.
184 This should speed up receiving data on sockets as the select code in
185 event_callback is only executed when select is waiting.
187 2010-03-06: Simon Goldschmidt
188 * tcp_out.c: task #7013 (Create option to have all packets delivered to
189 netif->output in one piece): Always copy to try to create single pbufs
192 2010-03-06: Simon Goldschmidt
193 * api.h, api_lib.c, sockets.c: task #10167 (sockets: speed up TCP recv
194 by not allocating a netbuf): added function netconn_recv_tcp_pbuf()
195 for tcp netconns to receive pbufs, not netbufs; use that function
198 2010-03-05: Jakob Ole Stoklundsen / Simon Goldschmidt
199 * opt.h, tcp.h, tcp_impl.h, tcp.c, tcp_in.c, tcp_out.c: task #7040:
200 Work on tcp_enqueue: Don't waste memory when chaining segments,
201 added option TCP_OVERSIZE to prevent creating many small pbufs when
202 calling tcp_write with many small blocks of data. Instead, pbufs are
203 allocated larger than needed and the space is used for later calls to
206 2010-02-21: Simon Goldschmidt
207 * stats.c/.h: Added const char* name to mem- and memp-stats for easier
210 2010-02-21: Simon Goldschmidt
211 * tcp.h (and usages), added tcp_impl.h: Splitted API and internal
212 implementation of tcp to make API usage cleare to application programmers
214 2010-02-14: Simon Goldschmidt/Stephane Lesage
215 * ip_addr.h: Improved some defines working on ip addresses, added faster
216 macro to copy addresses that cannot be NULL
218 2010-02-13: Simon Goldschmidt
219 * api.h, api_lib.c, api_msg.c, sockets.c: task #7865 (implement non-
220 blocking send operation)
222 2010-02-12: Simon Goldschmidt
223 * sockets.c/.h: Added a minimal version of posix fctl() to have a
224 standardised way to set O_NONBLOCK for nonblocking sockets.
226 2010-02-12: Simon Goldschmidt
227 * dhcp.c/.h, autoip.c/.h: task #10139 (Prefer statically allocated
228 memory): added autoip_set_struct() and dhcp_set_struct() to let autoip
229 and dhcp work with user-allocated structs instead of callin mem_malloc
231 2010-02-12: Simon Goldschmidt/Jeff Barber
232 * tcp.c/h: patch #6865 (SO_REUSEADDR for TCP): if pcb.so_options has
233 SOF_REUSEADDR set, allow binding to endpoint in TIME_WAIT
235 2010-02-12: Simon Goldschmidt
236 * sys layer: task #10139 (Prefer statically allocated memory): converted
237 mbox and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
238 converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
239 task #7212: Add Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX
240 to let sys.h use binary semaphores instead of mutexes - as before)
242 2010-02-09: Simon Goldschmidt (Simon Kallweit)
243 * timers.c/.h: Added function sys_restart_timeouts() from patch #7085
244 (Restart system timeout handling)
246 2010-02-09: Simon Goldschmidt
247 * netif.c/.h, removed loopif.c/.h: task #10153 (Integrate loopif into
248 netif.c) - loopif does not have to be created by the port any more,
249 just define LWIP_HAVE_LOOPIF to 1.
251 2010-02-08: Simon Goldschmidt
252 * inet.h, ip_addr.c/.h: Added reentrant versions of inet_ntoa/ipaddr_ntoa
253 inet_ntoa_r/ipaddr_ntoa_r
255 2010-02-08: Simon Goldschmidt
256 * netif.h: Added netif_s/get_igmp_mac_filter() macros
258 2010-02-05: Simon Goldschmidt
259 * netif.h: Added function-like macros to get/set the hostname on a netif
261 2010-02-04: Simon Goldschmidt
262 * nearly every file: Replaced struct ip_addr by typedef ip_addr_t to
263 make changing the actual implementation behind the typedef easier.
265 2010-02-01: Simon Goldschmidt
266 * opt.h, memp_std.h, dns.h, netdb.c, memp.c: Let netdb use a memp pool
267 for allocating memory when getaddrinfo() is called.
269 2010-01-31: Simon Goldschmidt
270 * dhcp.h, dhcp.c: Reworked the code that parses DHCP options: parse
271 them once instead of parsing for every option. This also removes
272 the need for mem_malloc from dhcp_recv and makes it possible to
273 correctly retrieve the BOOTP file.
275 2010-01-30: simon Goldschmidt
276 * sockets.c: Use SYS_LIGHTWEIGHT_PROT instead of a semaphore to protect
279 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
280 * api.h, api_msg.c, sockets.c: Added except set support in select
283 2010-01-29: Simon Goldschmidt (patch by Laura Garrett)
284 * api.h, sockets.h, err.h, api_lib.c, api_msg.c, sockets.c, err.c:
285 Add non-blocking support for connect (partly from patch #6860),
286 plus many cleanups in socket & netconn API.
288 2010-01-27: Simon Goldschmidt
289 * opt.h, tcp.h, init.c, api_msg.c: Added TCP_SNDQUEUELOWAT corresponding
290 to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605
292 2010-01-26: Simon Goldschmidt
293 * snmp: Use memp pools for snmp instead of the heap; added 4 new pools.
295 2010-01-14: Simon Goldschmidt
296 * ppp.c/.h: Fixed bug #27856: PPP: Set netif link- and status-callback
297 by adding ppp_set_netif_statuscallback()/ppp_set_netif_linkcallback()
299 2010-01-13: Simon Goldschmidt
300 * mem.c: The heap now may be moved to user-defined memory by defining
301 LWIP_RAM_HEAP_POINTER as a void pointer to that memory's address
302 (patch #6966 and bug #26133)
304 2010-01-10: Simon Goldschmidt (Bill Auerbach)
305 * opt.h, memp.c: patch #6822 (Add option to place memory pools in
308 2010-01-10: Simon Goldschmidt
309 * init.c, igmp.c: patch #6463 (IGMP - Adding Random Delay): added define
310 LWIP_RAND() for lwip-wide randomization (to be defined in cc.h)
312 2009-12-31: Simon Goldschmidt
313 * tcpip.c, init.c, memp.c, sys.c, memp_std.h, sys.h, tcpip.h
314 added timers.c/.h: Separated timer implementation from semaphore/mbox
315 implementation, moved timer implementation to timers.c/.h, timers are
316 now only called from tcpip_thread or by explicitly checking them.
319 2009-12-27: Simon Goldschmidt
320 * opt.h, etharp.h/.c, init.c, tcpip.c: Added an additional option
321 LWIP_ETHERNET to support ethernet without ARP (necessary for pure PPPoE)
326 2011-04-20: Simon Goldschmidt
327 * sys_arch.txt: sys_arch_timeouts() is not needed any more.
329 2011-04-13: Simon Goldschmidt
330 * tcp.c, udp.c: Fixed bug #33048 (Bad range for IP source port numbers) by
331 using ports in the IANA private/dynamic range (49152 through 65535).
333 2011-03-29: Simon Goldschmidt, patch by Emil Lhungdahl:
334 * etharp.h/.c: Fixed broken VLAN support.
336 2011-03-27: Simon Goldschmidt
337 * tcp.c: Fixed bug #32926 (TCP_RMV(&tcp_bound_pcbs) is called on unbound tcp
338 pcbs) by checking if the pcb was bound (local_port != 0).
340 2011-03-27: Simon Goldschmidt
341 * ppp.c: Fixed bug #32280 (ppp: a pbuf is freed twice)
343 2011-03-27: Simon Goldschmidt
344 * sockets.c: Fixed bug #32906: lwip_connect+lwip_send did not work for udp and
345 raw pcbs with LWIP_TCPIP_CORE_LOCKING==1.
347 2011-03-27: Simon Goldschmidt
348 * tcp_out.c: Fixed bug #32820 (Outgoing TCP connections created before route
349 is present never times out) by starting retransmission timer before checking
352 2011-03-22: Simon Goldschmidt
353 * ppp.c: Fixed bug #32648 (PPP code crashes when terminating a link) by only
354 calling sio_read_abort() if the file descriptor is valid.
356 2011-03-14: Simon Goldschmidt
357 * err.h/.c, sockets.c, api_msg.c: fixed bug #31748 (Calling non-blocking connect
358 more than once can render a socket useless) since it mainly involves changing
359 "FATAL" classification of error codes: ERR_USE and ERR_ISCONN just aren't fatal.
361 2011-03-13: Simon Goldschmidt
362 * sockets.c: fixed bug #32769 (ESHUTDOWN is linux-specific) by fixing
363 err_to_errno_table (ERR_CLSD: ENOTCONN instead of ESHUTDOWN), ERR_ISCONN:
364 use EALRADY instead of -1
366 2011-03-13: Simon Goldschmidt
367 * api_lib.c: netconn_accept: return ERR_ABRT instead of ERR_CLSD if the
368 connection has been aborted by err_tcp (since this is not a normal closing
371 2011-03-13: Simon Goldschmidt
372 * tcp.c: tcp_bind: return ERR_VAL instead of ERR_ISCONN when trying to bind
373 with pcb->state != CLOSED
375 2011-02-17: Simon Goldschmidt
376 * rawapi.txt: Fixed bug #32561 tcp_poll argument definition out-of-order in
379 2011-02-17: Simon Goldschmidt
380 * many files: Added missing U/UL modifiers to fix 16-bit-arch portability.
382 2011-01-24: Simon Goldschmidt
383 * sockets.c: Fixed bug #31741: lwip_select seems to have threading problems
385 2010-12-02: Simon Goldschmidt
386 * err.h: Fixed ERR_IS_FATAL so that ERR_WOULDBLOCK is not fatal.
388 2010-11-23: Simon Goldschmidt
389 * api.h, api_lib.c, api_msg.c, sockets.c: netconn.recv_avail is only used for
390 LWIP_SO_RCVBUF and ioctl/FIONREAD.
392 2010-11-23: Simon Goldschmidt
393 * etharp.c: Fixed bug #31720: ARP-queueing: RFC 1122 recommends to queue at
394 least 1 packet -> ARP_QUEUEING==0 now queues the most recent packet.
396 2010-11-23: Simon Goldschmidt
397 * tcp_in.c: Fixed bug #30577: tcp_input: don't discard ACK-only packets after
398 refusing 'refused_data' again.
400 2010-11-22: Simon Goldschmidt
401 * sockets.c: Fixed bug #31590: getsockopt(... SO_ERROR ...) gives EINPROGRESS
402 after a successful nonblocking connection.
404 2010-11-22: Simon Goldschmidt
405 * etharp.c: Fixed bug #31722: IP packets sent with an AutoIP source addr
406 must be sent link-local
408 2010-11-22: Simon Goldschmidt
409 * timers.c: patch #7329: tcp_timer_needed prototype was ifdef'ed out for
412 2010-11-20: Simon Goldschmidt
413 * sockets.c: Fixed bug #31170: lwip_setsockopt() does not set socket number
415 2010-11-20: Simon Goldschmidt
416 * sockets.h: Fixed bug #31304: Changed SHUT_RD, SHUT_WR and SHUT_RDWR to
417 resemble other stacks.
419 2010-11-20: Simon Goldschmidt
420 * dns.c: Fixed bug #31535: TCP_SND_QUEUELEN must be at least 2 or else
421 no-copy TCP writes will never succeed.
423 2010-11-20: Simon Goldschmidt
424 * dns.c: Fixed bug #31701: Error return value from dns_gethostbyname() does
425 not match documentation: return ERR_ARG instead of ERR_VAL if not
426 initialized or wrong argument.
428 2010-10-20: Simon Goldschmidt
429 * sockets.h: Fixed bug #31385: sizeof(struct sockaddr) is 30 but should be 16
431 2010-10-05: Simon Goldschmidt
432 * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
433 replugging the network cable after an AutoIP address was assigned.
435 2010-08-10: Simon Goldschmidt
436 * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
438 2010-08-03: Simon Goldschmidt
439 * udp.c, raw.c: Don't chain empty pbufs when sending them (fixes bug #30625)
441 2010-08-01: Simon Goldschmidt (patch by Greg Renda)
442 * ppp.c: Applied patch #7264 (PPP protocols are rejected incorrectly on big
443 endian architectures)
445 2010-07-28: Simon Goldschmidt
446 * api_lib.c, api_msg.c, sockets.c, mib2.c: Fixed compilation with TCP or UDP
449 2010-07-27: Simon Goldschmidt
450 * tcp.c: Fixed bug #30565 (tcp_connect() check bound list): that check did no
451 harm but never did anything
453 2010-07-21: Simon Goldschmidt
454 * ip.c: Fixed invalid fix for bug #30402 (CHECKSUM_GEN_IP_INLINE does not
457 2010-07-16: Kieran Mansley
458 * msg_in.c: Fixed SNMP ASN constant defines to not use ! operator
460 2010-07-10: Simon Goldschmidt
461 * ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
463 2010-06-30: Simon Goldschmidt
464 * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
467 2010-06-28: Kieran Mansley
468 * timers.c remove unportable printing of C function pointers
470 2010-06-24: Simon Goldschmidt
471 * init.c, timers.c/.h, opt.h, memp_std.h: From patch #7221: added flag
472 NO_SYS_NO_TIMERS to drop timer support for NO_SYS==1 for easier upgrading
474 2010-06-24: Simon Goldschmidt
475 * api(_lib).c/.h, api_msg.c/.h, sockets.c/.h: Fixed bug #10088: Correctly
476 implemented shutdown at socket level.
478 2010-06-21: Simon Goldschmidt
479 * pbuf.c/.h, ip_frag.c/.h, opt.h, memp_std.h: Fixed bug #29361 (ip_frag has
480 problems with zero-copy DMA MACs) by adding custom pbufs and implementing
481 custom pbufs that reference other (original) pbufs. Additionally set
482 IP_FRAG_USES_STATIC_BUF=0 as default to be on the safe side.
484 2010-06-15: Simon Goldschmidt
485 * dhcp.c: Fixed bug #29970: DHCP endian issue parsing option responses
487 2010-06-14: Simon Goldschmidt
488 * autoip.c: Fixed bug #30039: AutoIP does not reuse previous addresses
490 2010-06-12: Simon Goldschmidt
491 * dhcp.c: Fixed bug #30038: dhcp_network_changed doesn't reset AUTOIP coop
494 2010-05-17: Simon Goldschmidt
495 * netdb.c: Correctly NULL-terminate h_addr_list
497 2010-05-16: Simon Goldschmidt
498 * def.h/.c: changed the semantics of LWIP_PREFIX_BYTEORDER_FUNCS to prevent
499 "symbol already defined" i.e. when linking to winsock
501 2010-05-05: Simon Goldschmidt
502 * def.h, timers.c: Fixed bug #29769 (sys_check_timeouts: sys_now() may
505 2010-04-21: Simon Goldschmidt
506 * api_msg.c: Fixed bug #29617 (sometime cause stall on delete listening
509 2010-03-28: Luca Ceresoli
510 * ip_addr.c/.h: patch #7143: Add a few missing const qualifiers
512 2010-03-27: Luca Ceresoli
513 * mib2.c: patch #7130: remove meaningless const qualifiers
515 2010-03-26: Simon Goldschmidt
516 * tcp_out.c: Make LWIP_NETIF_TX_SINGLE_PBUF work for TCP, too
518 2010-03-26: Simon Goldschmidt
519 * various files: Fixed compiling with different options disabled (TCP/UDP),
520 triggered by bug #29345; don't allocate acceptmbox if LWIP_TCP is disabled
522 2010-03-25: Simon Goldschmidt
523 * sockets.c: Fixed bug #29332: lwip_select() processes readset incorrectly
525 2010-03-25: Simon Goldschmidt
526 * tcp_in.c, test_tcp_oos.c: Fixed bug #29080: Correctly handle remote side
527 overrunning our rcv_wnd in ooseq case.
529 2010-03-22: Simon Goldschmidt
530 * tcp.c: tcp_listen() did not copy the pcb's prio.
532 2010-03-19: Simon Goldschmidt
533 * snmp_msg.c: Fixed bug #29256: SNMP Trap address was not correctly set
535 2010-03-14: Simon Goldschmidt
536 * opt.h, etharp.h: Fixed bug #29148 (Incorrect PBUF_POOL_BUFSIZE for ports
537 where ETH_PAD_SIZE > 0) by moving definition of ETH_PAD_SIZE to opt.h
538 and basing PBUF_LINK_HLEN on it.
540 2010-03-08: Simon Goldschmidt
541 * netif.c, ipv4/ip.c: task #10241 (AutoIP: don't break existing connections
542 when assiging routable address): when checking incoming packets and
543 aborting existing connection on address change, filter out link-local
546 2010-03-06: Simon Goldschmidt
547 * sockets.c: Fixed LWIP_NETIF_TX_SINGLE_PBUF for LWIP_TCPIP_CORE_LOCKING
549 2010-03-06: Simon Goldschmidt
550 * ipv4/ip.c: Don't try to forward link-local addresses
552 2010-03-06: Simon Goldschmidt
553 * etharp.c: Fixed bug #29087: etharp: don't send packets for LinkLocal-
556 2010-03-05: Simon Goldschmidt
557 * dhcp.c: Fixed bug #29072: Correctly set ciaddr based on message-type
560 2010-03-05: Simon Goldschmidt
561 * api_msg.c: Correctly set TCP_WRITE_FLAG_MORE when netconn_write is split
562 into multiple calls to tcp_write.
564 2010-02-21: Simon Goldschmidt
565 * opt.h, mem.h, dns.c: task #10140: Remove DNS_USES_STATIC_BUF (keep
566 the implementation of DNS_USES_STATIC_BUF==1)
568 2010-02-20: Simon Goldschmidt
569 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Task #10088: Correctly implement
570 close() vs. shutdown(). Now the application does not get any more
571 recv callbacks after calling tcp_close(). Added tcp_shutdown().
573 2010-02-19: Simon Goldschmidt
574 * mem.c/.h, pbuf.c: Renamed mem_realloc() to mem_trim() to prevent
575 confusion with realloc()
577 2010-02-15: Simon Goldschmidt/Stephane Lesage
578 * netif.c/.h: Link status does not depend on LWIP_NETIF_LINK_CALLBACK
581 2010-02-14: Simon Goldschmidt
582 * netif.c: Fixed bug #28877 (Duplicate ARP gratuitous packet with
583 LWIP_NETIF_LINK_CALLBACK set on) by only sending if both link- and
584 admin-status of a netif are up
586 2010-02-14: Simon Goldschmidt
587 * opt.h: Disable ETHARP_TRUST_IP_MAC by default since it slows down packet
588 reception and is not really necessary
590 2010-02-14: Simon Goldschmidt
591 * etharp.c/.h: Fixed ARP input processing: only add a new entry if a
592 request was directed as us (RFC 826, Packet Reception), otherwise
593 only update existing entries; internalized some functions
595 2010-02-14: Simon Goldschmidt
596 * netif.h, etharp.c, tcpip.c: Fixed bug #28183 (ARP and TCP/IP cannot be
597 disabled on netif used for PPPoE) by adding a new netif flag
598 (NETIF_FLAG_ETHERNET) that tells the stack the device is an ethernet
599 device but prevents usage of ARP (so that ethernet_input can be used
602 2010-02-12: Simon Goldschmidt
603 * netif.c: netif_set_link_up/down: only do something if the link state
606 2010-02-12: Simon Goldschmidt/Stephane Lesage
607 * api_msg.c: Fixed bug #28865 (Cannot close socket/netconn in non-blocking
610 2010-02-12: Simon Goldschmidt
611 * mem.h: Fixed bug #28866 (mem_realloc function defined in mem.h)
613 2010-02-09: Simon Goldschmidt
614 * api_lib.c, api_msg.c, sockets.c, api.h, api_msg.h: Fixed bug #22110
615 (recv() makes receive window update for data that wasn't received by
618 2010-02-09: Simon Goldschmidt/Stephane Lesage
619 * sockets.c: Fixed bug #28853 (lwip_recvfrom() returns 0 on receive time-out
620 or any netconn_recv() error)
622 2010-02-09: Simon Goldschmidt
623 * ppp.c: task #10154 (PPP: Update snmp in/out counters for tx/rx packets)
625 2010-02-09: Simon Goldschmidt
626 * netif.c: For loopback packets, adjust the stats- and snmp-counters
627 for the loopback netif.
629 2010-02-08: Simon Goldschmidt
630 * igmp.c/.h, ip.h: Moved most defines from igmp.h to igmp.c for clarity
631 since they are not used anywhere else.
633 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
634 * igmp.c, igmp.h, stats.c, stats.h: Improved IGMP stats
635 (patch from bug #28798)
637 2010-02-08: Simon Goldschmidt (Stéphane Lesage)
638 * igmp.c: Fixed bug #28798 (Error in "Max Response Time" processing) and
639 another bug when LWIP_RAND() returns zero.
641 2010-02-04: Simon Goldschmidt
642 * nearly every file: Use macros defined in ip_addr.h (some of them new)
643 to work with IP addresses (preparation for bug #27352 - Change ip_addr
644 from struct to typedef (u32_t) - and better code).
646 2010-01-31: Simon Goldschmidt
647 * netif.c: Don't call the link-callback from netif_set_up/down() since
648 this invalidly retriggers DHCP.
650 2010-01-29: Simon Goldschmidt
651 * ip_addr.h, inet.h, def.h, inet.c, def.c, more: Cleanly separate the
652 portability file inet.h and its contents from the stack: moved htonX-
653 functions to def.h (and the new def.c - they are not ipv4 dependent),
654 let inet.h depend on ip_addr.h and not the other way round.
655 This fixes bug #28732.
657 2010-01-28: Kieran Mansley
658 * tcp.c: Ensure ssthresh >= 2*MSS
660 2010-01-27: Simon Goldschmidt
661 * tcp.h, tcp.c, tcp_in.c: Fixed bug #27871: Calling tcp_abort() in recv
662 callback can lead to accessing unallocated memory. As a consequence,
663 ERR_ABRT means the application has called tcp_abort()!
665 2010-01-25: Simon Goldschmidt
666 * snmp_structs.h, msg_in.c: Partly fixed bug #22070 (MIB_OBJECT_WRITE_ONLY
667 not implemented in SNMP): write-only or not-accessible are still
668 returned by getnext (though not by get)
670 2010-01-24: Simon Goldschmidt
671 * snmp: Renamed the private mib node from 'private' to 'mib_private' to
672 not use reserved C/C++ keywords
674 2010-01-23: Simon Goldschmidt
675 * sockets.c: Fixed bug #28716: select() returns 0 after waiting for less
678 2010-01-21: Simon Goldschmidt
679 * tcp.c, api_msg.c: Fixed bug #28651 (tcp_connect: no callbacks called
680 if tcp_enqueue fails) both in raw- and netconn-API
682 2010-01-19: Simon Goldschmidt
683 * api_msg.c: Fixed bug #27316: netconn: Possible deadlock in err_tcp
685 2010-01-18: Iordan Neshev/Simon Goldschmidt
686 * src/netif/ppp: reorganised PPP sourcecode to 2.3.11 including some
687 bugfix backports from 2.4.x.
689 2010-01-18: Simon Goldschmidt
690 * mem.c: Fixed bug #28679: mem_realloc calculates mem_stats wrong
692 2010-01-17: Simon Goldschmidt
693 * api_lib.c, api_msg.c, (api_msg.h, api.h, sockets.c, tcpip.c):
694 task #10102: "netconn: clean up conn->err threading issues" by adding
695 error return value to struct api_msg_msg
697 2010-01-17: Simon Goldschmidt
698 * api.h, api_lib.c, sockets.c: Changed netconn_recv() and netconn_accept()
699 to return err_t (bugs #27709 and #28087)
701 2010-01-14: Simon Goldschmidt
702 * ...: Use typedef for function prototypes throughout the stack.
704 2010-01-13: Simon Goldschmidt
705 * api_msg.h/.c, api_lib.c: Fixed bug #26672 (close connection when receive
706 window = 0) by correctly draining recvmbox/acceptmbox
708 2010-01-11: Simon Goldschmidt
709 * pap.c: Fixed bug #13315 (PPP PAP authentication can result in
710 erroneous callbacks) by copying the code from recent pppd
712 2010-01-10: Simon Goldschmidt
713 * raw.c: Fixed bug #28506 (raw_bind should filter received packets)
715 2010-01-10: Simon Goldschmidt
716 * tcp.h/.c: bug #28127 (remove call to tcp_output() from tcp_ack(_now)())
718 2010-01-08: Simon Goldschmidt
719 * sockets.c: Fixed bug #28519 (lwip_recvfrom bug with len > 65535)
721 2010-01-08: Simon Goldschmidt
722 * dns.c: Copy hostname for DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1 since string
723 passed to dns_local_addhost() might be volatile
725 2010-01-07: Simon Goldschmidt
726 * timers.c, tcp.h: Call tcp_timer_needed() with NO_SYS==1, too
728 2010-01-06: Simon Goldschmidt
729 * netdb.h: Fixed bug #28496: missing include guards in netdb.h
731 2009-12-31: Simon Goldschmidt
732 * many ppp files: Reorganised PPP source code from ucip structure to pppd
733 structure to easily compare our code against the pppd code (around v2.3.1)
735 2009-12-27: Simon Goldschmidt
736 * tcp_in.c: Another fix for bug #28241 (ooseq processing) and adapted
744 2009-10-27 Simon Goldschmidt/Stephan Lesage
745 * netifapi.c/.h: Added netifapi_netif_set_addr()
747 2009-10-07 Simon Goldschmidt/Fabian Koch
748 * api_msg.c, netbuf.c/.h, opt.h: patch #6888: Patch for UDP Netbufs to
749 support dest-addr and dest-port (optional: LWIP_NETBUF_RECVINFO)
751 2009-08-26 Simon Goldschmidt/Simon Kallweit
752 * slipif.c/.h: bug #26397: SLIP polling support
754 2009-08-25 Simon Goldschmidt
755 * opt.h, etharp.h/.c: task #9033: Support IEEE 802.1q tagged frame (VLAN),
756 New configuration options ETHARP_SUPPORT_VLAN and ETHARP_VLAN_CHECK.
758 2009-08-25 Simon Goldschmidt
759 * ip_addr.h, netdb.c: patch #6900: added define ip_ntoa(struct ip_addr*)
761 2009-08-24 Jakob Stoklund Olesen
762 * autoip.c, dhcp.c, netif.c: patch #6725: Teach AutoIP and DHCP to respond
763 to netif_set_link_up().
765 2009-08-23 Simon Goldschmidt
766 * tcp.h/.c: Added function tcp_debug_state_str() to convert a tcp state
767 to a human-readable string.
771 2009-12-24: Kieran Mansley
772 * tcp_in.c Apply patches from Oleg Tyshev to improve OOS processing
775 2009-12-06: Simon Goldschmidt
776 * ppp.h/.c: Fixed bug #27079 (Yet another leak in PPP): outpacket_buf can
777 be statically allocated (like in ucip)
779 2009-12-04: Simon Goldschmidt (patch by Ioardan Neshev)
780 * pap.c: patch #6969: PPP: missing PAP authentication UNTIMEOUT
782 2009-12-03: Simon Goldschmidt
783 * tcp.h, tcp_in.c, tcp_out.c: Fixed bug #28106: dup ack for fast retransmit
784 could have non-zero length
786 2009-12-02: Simon Goldschmidt
787 * tcp_in.c: Fixed bug #27904: TCP sends too many ACKs: delay resetting
788 tcp_input_pcb until after calling the pcb's callbacks
790 2009-11-29: Simon Goldschmidt
791 * tcp_in.c: Fixed bug #28054: Two segments with FIN flag on the out-of-
792 sequence queue, also fixed PBUF_POOL leak in the out-of-sequence code
794 2009-11-29: Simon Goldschmidt
795 * pbuf.c: Fixed bug #28064: pbuf_alloc(PBUF_POOL) is not thread-safe by
796 queueing a call into tcpip_thread to free ooseq-bufs if the pool is empty
798 2009-11-26: Simon Goldschmidt
799 * tcp.h: Fixed bug #28098: Nagle can prevent fast retransmit from sending
802 2009-11-26: Simon Goldschmidt
803 * tcp.h, sockets.c: Fixed bug #28099: API required to disable Nagle
804 algorithm at PCB level
806 2009-11-22: Simon Goldschmidt
807 * tcp_out.c: Fixed bug #27905: FIN isn't combined with data on unsent
809 2009-11-22: Simon Goldschmidt (suggested by Bill Auerbach)
810 * tcp.c: tcp_alloc: prevent increasing stats.err for MEMP_TCP_PCB when
811 reusing time-wait pcb
813 2009-11-20: Simon Goldschmidt (patch by Albert Bartel)
814 * sockets.c: Fixed bug #28062: Data received directly after accepting
815 does not wake up select
817 2009-11-11: Simon Goldschmidt
818 * netdb.h: Fixed bug #27994: incorrect define for freeaddrinfo(addrinfo)
820 2009-10-30: Simon Goldschmidt
821 * opt.h: Increased default value for TCP_MSS to 536, updated default
822 value for TCP_WND to 4*TCP_MSS to keep delayed ACK working.
824 2009-10-28: Kieran Mansley
825 * tcp_in.c, tcp_out.c, tcp.h: re-work the fast retransmission code
826 to follow algorithm from TCP/IP Illustrated
828 2009-10-27: Kieran Mansley
829 * tcp_in.c: fix BUG#27445: grow cwnd with every duplicate ACK
831 2009-10-25: Simon Goldschmidt
832 * tcp.h: bug-fix in the TCP_EVENT_RECV macro (has to call tcp_recved if
833 pcb->recv is NULL to keep rcv_wnd correct)
835 2009-10-25: Simon Goldschmidt
836 * tcp_in.c: Fixed bug #26251: RST process in TIME_WAIT TCP state
838 2009-10-23: Simon Goldschmidt (David Empson)
839 * tcp.c: Fixed bug #27783: Silly window avoidance for small window sizes
841 2009-10-21: Simon Goldschmidt
842 * tcp_in.c: Fixed bug #27215: TCP sent() callback gives leading and
843 trailing 1 byte len (SYN/FIN)
845 2009-10-21: Simon Goldschmidt
846 * tcp_out.c: Fixed bug #27315: zero window probe and FIN
848 2009-10-19: Simon Goldschmidt
849 * dhcp.c/.h: Minor code simplification (don't store received pbuf, change
850 conditional code to assert where applicable), check pbuf length before
851 testing for valid reply
853 2009-10-19: Simon Goldschmidt
854 * dhcp.c: Removed most calls to udp_connect since they aren't necessary
855 when using udp_sendto_if() - always stay connected to IP_ADDR_ANY.
857 2009-10-16: Simon Goldschmidt
858 * ip.c: Fixed bug #27390: Source IP check in ip_input() causes it to drop
859 valid DHCP packets -> allow 0.0.0.0 as source address when LWIP_DHCP is
862 2009-10-15: Simon Goldschmidt (Oleg Tyshev)
863 * tcp_in.c: Fixed bug #27329: dupacks by unidirectional data transmit
865 2009-10-15: Simon Goldschmidt
866 * api_lib.c: Fixed bug #27709: conn->err race condition on netconn_recv()
869 2009-10-15: Simon Goldschmidt
870 * autoip.c: Fixed bug #27704: autoip starts with wrong address
871 LWIP_AUTOIP_CREATE_SEED_ADDR() returned address in host byte order instead
872 of network byte order
874 2009-10-11 Simon Goldschmidt (Jörg Kesten)
875 * tcp_out.c: Fixed bug #27504: tcp_enqueue wrongly concatenates segments
876 which are not consecutive when retransmitting unacked segments
878 2009-10-09 Simon Goldschmidt
879 * opt.h: Fixed default values of some stats to only be enabled if used
880 Fixes bug #27338: sys_stats is defined when NO_SYS = 1
882 2009-08-30 Simon Goldschmidt
883 * ip.c: Fixed bug bug #27345: "ip_frag() does not use the LWIP_NETIF_LOOPBACK
884 function" by checking for loopback before calling ip_frag
886 2009-08-25 Simon Goldschmidt
887 * dhcp.c: fixed invalid dependency to etharp_query if DHCP_DOES_ARP_CHECK==0
889 2009-08-23 Simon Goldschmidt
890 * ppp.c: bug #27078: Possible memory leak in pppInit()
892 2009-08-23 Simon Goldschmidt
893 * netdb.c, dns.c: bug #26657: DNS, if host name is "localhost", result
896 2009-08-23 Simon Goldschmidt
897 * opt.h, init.c: bug #26649: TCP fails when TCP_MSS > TCP_SND_BUF
898 Fixed wrong parenthesis, added check in init.c
900 2009-08-23 Simon Goldschmidt
901 * ppp.c: bug #27266: wait-state debug message in pppMain occurs every ms
903 2009-08-23 Simon Goldschmidt
904 * many ppp files: bug #27267: Added include to string.h where needed
906 2009-08-23 Simon Goldschmidt
907 * tcp.h: patch #6843: tcp.h macro optimization patch (for little endian)
914 2009-05-10 Simon Goldschmidt
915 * opt.h, sockets.c, pbuf.c, netbuf.h, pbuf.h: task #7013: Added option
916 LWIP_NETIF_TX_SINGLE_PBUF to try to create transmit packets from only
917 one pbuf to help MACs that don't support scatter-gather DMA.
919 2009-05-09 Simon Goldschmidt
920 * icmp.h, icmp.c: Shrinked ICMP code, added option to NOT check icoming
921 ECHO pbuf for size (just use it): LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN
923 2009-05-05 Simon Goldschmidt, Jakob Stoklund Olesen
924 * ip.h, ip.c: Added ip_current_netif() & ip_current_header() to receive
925 extended info about the currently received packet.
927 2009-04-27 Simon Goldschmidt
928 * sys.h: Made SYS_LIGHTWEIGHT_PROT and sys_now() work with NO_SYS=1
930 2009-04-25 Simon Goldschmidt
931 * mem.c, opt.h: Added option MEM_USE_POOLS_TRY_BIGGER_POOL to try the next
932 bigger malloc pool if one is empty (only usable with MEM_USE_POOLS).
934 2009-04-21 Simon Goldschmidt
935 * dns.c, init.c, dns.h, opt.h: task #7507, patch #6786: DNS supports static
936 hosts table. New configuration options DNS_LOCAL_HOSTLIST and
937 DNS_LOCAL_HOSTLIST_IS_DYNAMIC. Also, DNS_LOOKUP_LOCAL_EXTERN() can be defined
938 as an external function for lookup.
940 2009-04-15 Simon Goldschmidt
941 * dhcp.c: patch #6763: Global DHCP XID can be redefined to something more unique
943 2009-03-31 Kieran Mansley
944 * tcp.c, tcp_out.c, tcp_in.c, sys.h, tcp.h, opts.h: add support for
945 TCP timestamp options, off by default. Rework tcp_enqueue() to
946 take option flags rather than specified option data
948 2009-02-18 Simon Goldschmidt
949 * cc.h: Added printf formatter for size_t: SZT_F
951 2009-02-16 Simon Goldschmidt (patch by Rishi Khan)
952 * icmp.c, opt.h: patch #6539: (configurable) response to broadcast- and multicast
955 2009-02-12 Simon Goldschmidt
956 * init.h: Added LWIP_VERSION to get the current version of the stack
958 2009-02-11 Simon Goldschmidt (suggested by Gottfried Spitaler)
959 * opt.h, memp.h/.c: added MEMP_MEM_MALLOC to use mem_malloc/mem_free instead
960 of the pool allocator (can save code size with MEM_LIBC_MALLOC if libc-malloc
963 2009-01-28 Jonathan Larmour (suggested by Bill Bauerbach)
964 * ipv4/inet_chksum.c, ipv4/lwip/inet_chksum.h: inet_chksum_pseudo_partial()
965 is only used by UDPLITE at present, so conditionalise it.
967 2008-12-03 Simon Goldschmidt (base on patch from Luca Ceresoli)
968 * autoip.c: checked in (slightly modified) patch #6683: Customizable AUTOIP
969 "seed" address. This should reduce AUTOIP conflicts if
970 LWIP_AUTOIP_CREATE_SEED_ADDR is overridden.
972 2008-10-02 Jonathan Larmour and Rishi Khan
973 * sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
976 2008-06-30 Simon Goldschmidt
977 * mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
978 interrupt context isn't safe: LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT allows
979 mem_free to run between mem_malloc iterations. Added illegal counter for
982 2008-06-27 Simon Goldschmidt
983 * stats.h/.c, some other files: patch #6483: stats module improvement:
984 Added defines to display each module's statistic individually, added stats
985 defines for MEM, MEMP and SYS modules, removed (unused) rexmit counter.
987 2008-06-17 Simon Goldschmidt
988 * err.h: patch #6459: Made err_t overridable to use a more efficient type
989 (define LWIP_ERR_T in cc.h)
991 2008-06-17 Simon Goldschmidt
992 * slipif.c: patch #6480: Added a configuration option for slipif for symmetry
995 2008-06-17 Simon Goldschmidt (patch by Luca Ceresoli)
996 * netif.c, loopif.c, ip.c, netif.h, loopif.h, opt.h: Checked in slightly
997 modified version of patch # 6370: Moved loopif code to netif.c so that
998 loopback traffic is supported on all netifs (all local IPs).
999 Added option to limit loopback packets for each netifs.
1003 2009-08-12 Kieran Mansley
1004 * tcp_in.c, tcp.c: Fix bug #27209: handle trimming of segments when
1005 out of window or out of order properly
1007 2009-08-12 Kieran Mansley
1008 * tcp_in.c: Fix bug #27199: use snd_wl2 instead of snd_wl1
1010 2009-07-28 Simon Goldschmidt
1011 * mem.h: Fixed bug #27105: "realloc() cannot replace mem_realloc()"s
1013 2009-07-27 Kieran Mansley
1014 * api.h api_msg.h netdb.h sockets.h: add missing #include directives
1016 2009-07-09 Kieran Mansley
1017 * api_msg.c, sockets.c, api.h: BUG23240 use signed counters for
1018 recv_avail and don't increment counters until message successfully
1021 2009-06-25 Kieran Mansley
1022 * api_msg.c api.h: BUG26722: initialise netconn write variables
1025 2009-06-25 Kieran Mansley
1026 * tcp.h: BUG26879: set ret value in TCP_EVENT macros when function is not set
1028 2009-06-25 Kieran Mansley
1029 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: BUG26301 and BUG26267: correct
1030 simultaneous close behaviour, and make snd_nxt have the same meaning
1033 2009-05-12 Simon Goldschmidt
1034 * etharp.h, etharp.c, netif.c: fixed bug #26507: "Gratuitous ARP depends on
1035 arp_table / uses etharp_query" by adding etharp_gratuitous()
1037 2009-05-12 Simon Goldschmidt
1038 * ip.h, ip.c, igmp.c: bug #26487: Added ip_output_if_opt that can add IP options
1039 to the IP header (used by igmp_ip_output_if)
1041 2009-05-06 Simon Goldschmidt
1042 * inet_chksum.c: On little endian architectures, use LWIP_PLATFORM_HTONS (if
1043 defined) for SWAP_BYTES_IN_WORD to speed up checksumming.
1045 2009-05-05 Simon Goldschmidt
1046 * sockets.c: bug #26405: Prematurely released semaphore causes lwip_select()
1049 2009-05-04 Simon Goldschmidt
1050 * init.c: snmp was not initialized in lwip_init()
1052 2009-05-04 Frédéric Bernon
1053 * dhcp.c, netbios.c: Changes if IP_SOF_BROADCAST is enabled.
1055 2009-05-03 Simon Goldschmidt
1056 * tcp.h: bug #26349: Nagle algorithm doesn't send although segment is full
1057 (and unsent->next == NULL)
1059 2009-05-02 Simon Goldschmidt
1060 * tcpip.h, tcpip.c: fixed tcpip_untimeout (does not need the time, broken after
1061 1.3.0 in CVS only) - fixes compilation of ppp_oe.c
1063 2009-05-02 Simon Goldschmidt
1064 * msg_in.c: fixed bug #25636: SNMPSET value is ignored for integer fields
1066 2009-05-01 Simon Goldschmidt
1067 * pap.c: bug #21680: PPP upap_rauthnak() drops legal NAK packets
1069 2009-05-01 Simon Goldschmidt
1070 * ppp.c: bug #24228: Memory corruption with PPP and DHCP
1072 2009-04-29 Frédéric Bernon
1073 * raw.c, udp.c, init.c, opt.h, ip.h, sockets.h: bug #26309: Implement the
1074 SO(F)_BROADCAST filter for all API layers. Avoid the unindented reception
1075 of broadcast packets even when this option wasn't set. Port maintainers
1076 which want to enable this filter have to set IP_SOF_BROADCAST=1 in opt.h.
1077 If you want this option also filter broadcast on recv operations, you also
1078 have to set IP_SOF_BROADCAST_RECV=1 in opt.h.
1080 2009-04-28 Simon Goldschmidt, Jakob Stoklund Olesen
1081 * dhcp.c: patch #6721, bugs #25575, #25576: Some small fixes to DHCP and
1082 DHCP/AUTOIP cooperation
1084 2009-04-25 Simon Goldschmidt, Oleg Tyshev
1085 * tcp_out.c: bug #24212: Deadlocked tcp_retransmit due to exceeded pcb->cwnd
1086 Fixed by sorting the unsent and unacked queues (segments are inserted at the
1087 right place in tcp_output and tcp_rexmit).
1089 2009-04-25 Simon Goldschmidt
1090 * memp.c, mem.c, memp.h, mem_std.h: bug #26213 "Problem with memory allocation
1091 when debugging": memp_sizes contained the wrong sizes (including sanity
1092 regions); memp pools for MEM_USE_POOLS were too small
1094 2009-04-24 Simon Goldschmidt, Frédéric Bernon
1095 * inet.c: patch #6765: Fix a small problem with the last changes (incorrect
1096 behavior, with with ip address string not ended by a '\0', a space or a
1099 2009-04-19 Simon Goldschmidt
1100 * rawapi.txt: Fixed bug #26069: Corrected documentation: if tcp_connect fails,
1101 pcb->err is called, not pcb->connected (with an error code).
1103 2009-04-19 Simon Goldschmidt
1104 * tcp_out.c: Fixed bug #26236: "TCP options (timestamp) don't work with
1105 no-copy-tcpwrite": deallocate option data, only concat segments with same flags
1107 2009-04-19 Simon Goldschmidt
1108 * tcp_out.c: Fixed bug #25094: "Zero-length pbuf" (options are now allocated
1109 in the header pbuf, not the data pbuf)
1111 2009-04-18 Simon Goldschmidt
1112 * api_msg.c: fixed bug #25695: Segmentation fault in do_writemore()
1114 2009-04-15 Simon Goldschmidt
1115 * sockets.c: tried to fix bug #23559: lwip_recvfrom problem with tcp
1117 2009-04-15 Simon Goldschmidt
1118 * dhcp.c: task #9192: mem_free of dhcp->options_in and dhcp->msg_in
1120 2009-04-15 Simon Goldschmidt
1121 * ip.c, ip6.c, tcp_out.c, ip.h: patch #6808: Add a utility function
1122 ip_hinted_output() (for smaller code mainly)
1124 2009-04-15 Simon Goldschmidt
1125 * inet.c: patch #6765: Supporting new line characters in inet_aton()
1127 2009-04-15 Simon Goldschmidt
1128 * dhcp.c: patch #6764: DHCP rebind and renew did not send hostnam option;
1129 Converted constant OPTION_MAX_MSG_SIZE to netif->mtu, check if netif->mtu
1130 is big enough in dhcp_start
1132 2009-04-15 Simon Goldschmidt
1133 * netbuf.c: bug #26027: netbuf_chain resulted in pbuf memory leak
1135 2009-04-15 Simon Goldschmidt
1136 * sockets.c, ppp.c: bug #25763: corrected 4 occurrences of SMEMCPY to MEMCPY
1138 2009-04-15 Simon Goldschmidt
1139 * sockets.c: bug #26121: set_errno can be overridden
1141 2009-04-09 Kieran Mansley (patch from Luca Ceresoli <lucaceresoli>)
1142 * init.c, opt.h: Patch#6774 TCP_QUEUE_OOSEQ breaks compilation when
1145 2009-04-09 Kieran Mansley (patch from Roy Lee <roylee17>)
1146 * tcp.h: Patch#6802 Add do-while-clauses to those function like
1149 2009-03-31 Kieran Mansley
1150 * tcp.c, tcp_in.c, tcp_out.c, tcp.h, opt.h: Rework the way window
1151 updates are calculated and sent (BUG20515)
1153 * tcp_in.c: cope with SYN packets received during established states,
1154 and retransmission of initial SYN.
1156 * tcp_out.c: set push bit correctly when tcp segments are merged
1158 2009-03-27 Kieran Mansley
1159 * tcp_out.c set window correctly on probes (correcting change made
1162 2009-03-26 Kieran Mansley
1163 * tcp.c, tcp_in.c, tcp.h: add tcp_abandon() to cope with dropping
1164 connections where no reset required (bug #25622)
1166 * tcp_out.c: set TCP_ACK flag on keepalive and zero window probes
1169 2009-02-18 Simon Goldschmidt (Jonathan Larmour and Bill Auerbach)
1170 * ip_frag.c: patch #6528: the buffer used for IP_FRAG_USES_STATIC_BUF could be
1171 too small depending on MEM_ALIGNMENT
1173 2009-02-16 Simon Goldschmidt
1174 * sockets.h/.c, api_*.h/.c: fixed arguments of socket functions to match the standard;
1175 converted size argument of netconn_write to 'size_t'
1177 2009-02-16 Simon Goldschmidt
1178 * tcp.h, tcp.c: fixed bug #24440: TCP connection close problem on 64-bit host
1179 by moving accept callback function pointer to TCP_PCB_COMMON
1181 2009-02-12 Simon Goldschmidt
1182 * dhcp.c: fixed bug #25345 (DHCPDECLINE is sent with "Maximum message size"
1185 2009-02-11 Simon Goldschmidt
1186 * dhcp.c: fixed bug #24480 (releasing old udp_pdb and pbuf in dhcp_start)
1188 2009-02-11 Simon Goldschmidt
1189 * opt.h, api_msg.c: added configurable default valud for netconn->recv_bufsize:
1190 RECV_BUFSIZE_DEFAULT (fixes bug #23726: pbuf pool exhaustion on slow recv())
1192 2009-02-10 Simon Goldschmidt
1193 * tcp.c: fixed bug #25467: Listen backlog is not reset on timeout in SYN_RCVD:
1194 Accepts_pending is decrease on a corresponding listen pcb when a connection
1195 in state SYN_RCVD is close.
1197 2009-01-28 Jonathan Larmour
1198 * pbuf.c: reclaim pbufs from TCP out-of-sequence segments if we run
1201 2008-12-19 Simon Goldschmidt
1202 * many files: patch #6699: fixed some warnings on platform where sizeof(int) == 2
1204 2008-12-10 Tamas Somogyi, Frédéric Bernon
1205 * sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
1206 port uses deleted netbuf.
1208 2008-10-18 Simon Goldschmidt
1209 * tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
1212 2008-10-15 Simon Goldschmidt
1213 * ip_frag.c: fixed bug #24517: IP reassembly crashes on unaligned IP headers
1214 by packing the struct ip_reass_helper.
1216 2008-10-03 David Woodhouse, Jonathan Larmour
1217 * etharp.c (etharp_arp_input): Fix type aliasing problem copying ip address.
1219 2008-10-02 Jonathan Larmour
1220 * dns.c: Hard-code structure sizes, to avoid issues on some compilers where
1221 padding is included.
1223 2008-09-30 Jonathan Larmour
1224 * sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
1225 assertion check that addrlen isn't NULL.
1227 2008-09-30 Jonathan Larmour
1228 * tcp.c: Fix bug #24227, wrong error message in tcp_bind.
1230 2008-08-26 Simon Goldschmidt
1231 * inet.h, ip_addr.h: fixed bug #24132: Cross-dependency between ip_addr.h and
1232 inet.h -> moved declaration of struct in_addr from ip_addr.h to inet.h
1234 2008-08-14 Simon Goldschmidt
1235 * api_msg.c: fixed bug #23847: do_close_internal references freed memory (when
1236 tcp_close returns != ERR_OK)
1238 2008-07-08 Frédéric Bernon
1239 * stats.h: Fix some build bugs introduced with patch #6483 (missing some parameters
1240 in macros, mainly if MEM_STATS=0 and MEMP_STATS=0).
1242 2008-06-24 Jonathan Larmour
1243 * tcp_in.c: Fix for bug #23693 as suggested by Art R. Ensure cseg is unused
1244 if tcp_seg_copy fails.
1246 2008-06-17 Simon Goldschmidt
1247 * inet_chksum.c: Checked in some ideas of patch #6460 (loop optimizations)
1248 and created defines for swapping bytes and folding u32 to u16.
1250 2008-05-30 Kieran Mansley
1251 * tcp_in.c Remove redundant "if" statement, and use real rcv_wnd
1252 rather than rcv_ann_wnd when deciding if packets are in-window.
1253 Contributed by <arasmussen@consultant.datasys.swri.edu>
1255 2008-05-30 Kieran Mansley
1256 * mem.h: Fix BUG#23254. Change macro definition of mem_* to allow
1257 passing as function pointers when MEM_LIBC_MALLOC is defined.
1259 2008-05-09 Jonathan Larmour
1260 * err.h, err.c, sockets.c: Fix bug #23119: Reorder timeout error code to
1261 stop it being treated as a fatal error.
1263 2008-04-15 Simon Goldschmidt
1264 * dhcp.c: fixed bug #22804: dhcp_stop doesn't clear NETIF_FLAG_DHCP
1267 2008-03-27 Simon Goldschmidt
1268 * mem.c, tcpip.c, tcpip.h, opt.h: fixed bug #21433 (Calling mem_free/pbuf_free
1269 from interrupt context isn't safe): set LWIP_USE_HEAP_FROM_INTERRUPT to 1
1270 in lwipopts.h or use pbuf_free_callback(p)/mem_free_callback(m) to free pbufs
1271 or heap memory from interrupt context
1273 2008-03-26 Simon Goldschmidt
1274 * tcp_in.c, tcp.c: fixed bug #22249: division by zero could occur if a remote
1275 host sent a zero mss as TCP option.
1282 2008-03-10 Jonathan Larmour
1283 * inet_chksum.c: Allow choice of one of the sample algorithms to be
1284 made from lwipopts.h. Fix comment on how to override LWIP_CHKSUM.
1286 2008-01-22 Frédéric Bernon
1287 * tcp.c, tcp_in.c, tcp.h, opt.h: Rename LWIP_CALCULATE_EFF_SEND_MSS in
1288 TCP_CALCULATE_EFF_SEND_MSS to have coherent TCP options names.
1290 2008-01-14 Frédéric Bernon
1291 * rawapi.txt, api_msg.c, tcp.c, tcp_in.c, tcp.h: changes for task #7675 "Enable
1292 to refuse data on a TCP_EVENT_RECV call". Important, behavior changes for the
1293 tcp_recv callback (see rawapi.txt).
1295 2008-01-14 Frédéric Bernon, Marc Chaland
1296 * ip.c: Integrate patch #6369" ip_input : checking before realloc".
1298 2008-01-12 Frédéric Bernon
1299 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1300 netconn::sem per netconn::op_completed like suggested for the task #7490
1301 "Add return value to sys_mbox_post".
1303 2008-01-12 Frédéric Bernon
1304 * api_msg.c, opt.h: replace DEFAULT_RECVMBOX_SIZE per DEFAULT_TCP_RECVMBOX_SIZE,
1305 DEFAULT_UDP_RECVMBOX_SIZE and DEFAULT_RAW_RECVMBOX_SIZE (to optimize queues
1306 sizes), like suggested for the task #7490 "Add return value to sys_mbox_post".
1308 2008-01-10 Frédéric Bernon
1309 * tcpip.h, tcpip.c: add tcpip_callback_with_block function for the task #7490
1310 "Add return value to sys_mbox_post". tcpip_callback is always defined as
1311 "blocking" ("block" parameter = 1).
1313 2008-01-10 Frédéric Bernon
1314 * tcpip.h, tcpip.c, api.h, api_lib.c, api_msg.c, sockets.c: replace the field
1315 netconn::mbox (sys_mbox_t) per netconn::sem (sys_sem_t) for the task #7490
1316 "Add return value to sys_mbox_post".
1318 2008-01-05 Frédéric Bernon
1319 * sys_arch.txt, api.h, api_lib.c, api_msg.h, api_msg.c, tcpip.c, sys.h, opt.h:
1320 Introduce changes for task #7490 "Add return value to sys_mbox_post" with some
1321 modifications in the sys_mbox api: sys_mbox_new take a "size" parameters which
1322 indicate the number of pointers query by the mailbox. There is three defines
1323 in opt.h to indicate sizes for tcpip::mbox, netconn::recvmbox, and for the
1324 netconn::acceptmbox. Port maintainers, you can decide to just add this new
1325 parameter in your implementation, but to ignore it to keep the previous behavior.
1326 The new sys_mbox_trypost function return a value to know if the mailbox is
1327 full or if the message is posted. Take a look to sys_arch.txt for more details.
1328 This new function is used in tcpip_input (so, can be called in an interrupt
1329 context since the function is not blocking), and in recv_udp and recv_raw.
1331 2008-01-04 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1332 * rawapi.txt, api.h, api_lib.c, api_msg.h, api_msg.c, sockets.c, tcp.h, tcp.c,
1333 tcp_in.c, init.c, opt.h: rename backlog options with TCP_ prefix, limit the
1334 "backlog" parameter in an u8_t, 0 is interpreted as "smallest queue", add
1335 documentation in the rawapi.txt file.
1337 2007-12-31 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1338 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Add TCP persist timer
1340 2007-12-31 Frédéric Bernon, Luca Ceresoli
1341 * autoip.c, etharp.c: ip_addr.h: Integrate patch #6348: "Broadcast ARP packets
1342 in autoip". The change in etharp_raw could be removed, since all calls to
1343 etharp_raw use ethbroadcast for the "ethdst_addr" parameter. But it could be
1344 wrong in the future.
1346 2007-12-30 Frédéric Bernon, Tom Evans
1347 * ip.c: Fix bug #21846 "LwIP doesn't appear to perform any IP Source Address
1348 Filtering" reported by Tom Evans.
1350 2007-12-21 Frédéric Bernon, Simon Goldschmidt, Jonathan Larmour
1351 * tcp.h, opt.h, api.h, api_msg.h, tcp.c, tcp_in.c, api_lib.c, api_msg.c,
1352 sockets.c, init.c: task #7252: Implement TCP listen backlog: Warning: raw API
1353 applications have to call 'tcp_accepted(pcb)' in their accept callback to
1354 keep accepting new connections.
1356 2007-12-13 Frédéric Bernon
1357 * api_msg.c, err.h, err.c, sockets.c, dns.c, dns.h: replace "enum dns_result"
1358 by err_t type. Add a new err_t code "ERR_INPROGRESS".
1360 2007-12-12 Frédéric Bernon
1361 * dns.h, dns.c, opt.h: move DNS options to the "right" place. Most visibles
1362 are the one which have ram usage.
1364 2007-12-05 Frédéric Bernon
1365 * netdb.c: add a LWIP_DNS_API_HOSTENT_STORAGE option to decide to use a static
1366 set of variables (=0) or a local one (=1). In this last case, your port should
1367 provide a function "struct hostent* sys_thread_hostent( struct hostent* h)"
1368 which have to do a copy of "h" and return a pointer ont the "per-thread" copy.
1370 2007-12-03 Simon Goldschmidt
1371 * ip.c: ip_input: check if a packet is for inp first before checking all other
1372 netifs on netif_list (speeds up packet receiving in most cases)
1374 2007-11-30 Simon Goldschmidt
1375 * udp.c, raw.c: task #7497: Sort lists (pcb, netif, ...) for faster access
1376 UDP: move a (connected) pcb selected for input to the front of the list of
1377 pcbs so that it is found faster next time. Same for RAW pcbs that have eaten
1380 2007-11-28 Simon Goldschmidt
1381 * etharp.c, stats.c, stats.h, opt.h: Introduced ETHARP_STATS
1383 2007-11-25 Simon Goldschmidt
1384 * dhcp.c: dhcp_unfold_reply() uses pbuf_copy_partial instead of its own copy
1387 2007-11-24 Simon Goldschmidt
1388 * netdb.h, netdb.c, sockets.h/.c: Moved lwip_gethostbyname from sockets.c
1389 to the new file netdb.c; included lwip_getaddrinfo.
1391 2007-11-21 Simon Goldschmidt
1392 * tcp.h, opt.h, tcp.c, tcp_in.c: implemented calculating the effective send-mss
1393 based on the MTU of the netif used to send. Enabled by default. Disable by
1394 setting LWIP_CALCULATE_EFF_SEND_MSS to 0. This fixes bug #21492.
1396 2007-11-19 Frédéric Bernon
1397 * api_msg.c, dns.h, dns.c: Implement DNS_DOES_NAME_CHECK option (check if name
1398 received match the name query), implement DNS_USES_STATIC_BUF (the place where
1399 copy dns payload to parse the response), return an error if there is no place
1400 for a new query, and fix some minor problems.
1402 2007-11-16 Simon Goldschmidt
1403 * new files: ipv4/inet.c, ipv4/inet_chksum.c, ipv6/inet6.c
1404 removed files: core/inet.c, core/inet6.c
1405 Moved inet files into ipv4/ipv6 directory; splitted inet.c/inet.h into
1406 inet and chksum part; changed includes in all lwIP files as appropriate
1408 2007-11-16 Simon Goldschmidt
1409 * api.h, api_msg.h, api_lib.c, api_msg.c, socket.h, socket.c: Added sequential
1410 dns resolver function for netconn api (netconn_gethostbyname) and socket api
1411 (gethostbyname/gethostbyname_r).
1413 2007-11-15 Jim Pettinato, Frédéric Bernon
1414 * opt.h, init.c, tcpip.c, dhcp.c, dns.h, dns.c: add DNS client for simple name
1415 requests with RAW api interface. Initialization is done in lwip_init() with
1416 build time options. DNS timer is added in tcpip_thread context. DHCP can set
1417 DNS server ip addresses when options are received. You need to set LWIP_DNS=1
1418 in your lwipopts.h file (LWIP_DNS=0 in opt.h). DNS_DEBUG can be set to get
1419 some traces with LWIP_DEBUGF. Sanity check have been added. There is a "todo"
1420 list with points to improve.
1422 2007-11-06 Simon Goldschmidt
1423 * opt.h, mib2.c: Patch #6215: added ifAdminStatus write support (if explicitly
1424 enabled by defining SNMP_SAFE_REQUESTS to 0); added code to check link status
1425 for ifOperStatus if LWIP_NETIF_LINK_CALLBACK is defined.
1427 2007-11-06 Simon Goldschmidt
1428 * api.h, api_msg.h and dependent files: Task #7410: Removed the need to include
1429 core header files in api.h (ip/tcp/udp/raw.h) to hide the internal
1430 implementation from netconn api applications.
1432 2007-11-03 Frédéric Bernon
1433 * api.h, api_lib.c, api_msg.c, sockets.c, opt.h: add SO_RCVBUF option for UDP &
1434 RAW netconn. You need to set LWIP_SO_RCVBUF=1 in your lwipopts.h (it's disabled
1435 by default). Netconn API users can use the netconn_recv_bufsize macro to access
1436 it. This is a first release which have to be improve for TCP. Note it used the
1437 netconn::recv_avail which need to be more "thread-safe" (note there is already
1438 the problem for FIONREAD with lwip_ioctl/ioctlsocket).
1440 2007-11-01 Frédéric Bernon, Marc Chaland
1441 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, tcp.h, tcp_out.c:
1442 Integrate "patch #6250 : MSG_MORE flag for send". MSG_MORE is used at socket api
1443 layer, NETCONN_MORE at netconn api layer, and TCP_WRITE_FLAG_MORE at raw api
1444 layer. This option enable to delayed TCP PUSH flag on multiple "write" calls.
1445 Note that previous "copy" parameter for "write" APIs is now called "apiflags".
1447 2007-10-24 Frédéric Bernon
1448 * api.h, api_lib.c, api_msg.c: Add macro API_EVENT in the same spirit than
1449 TCP_EVENT_xxx macros to get a code more readable. It could also help to remove
1450 some code (like we have talk in "patch #5919 : Create compile switch to remove
1451 select code"), but it could be done later.
1453 2007-10-08 Simon Goldschmidt
1454 * many files: Changed initialization: many init functions are not needed any
1455 more since we now rely on the compiler initializing global and static
1458 2007-10-06 Simon Goldschmidt
1459 * ip_frag.c, memp.c, mib2.c, ip_frag.h, memp_std.h, opt.h: Changed IP_REASSEMBLY
1460 to enqueue the received pbufs so that multiple packets can be reassembled
1461 simultaneously and no static reassembly buffer is needed.
1463 2007-10-05 Simon Goldschmidt
1464 * tcpip.c, etharp.h, etharp.c: moved ethernet_input from tcpip.c to etharp.c so
1465 all netifs (or ports) can use it.
1467 2007-10-05 Frédéric Bernon
1468 * netifapi.h, netifapi.c: add function netifapi_netif_set_default. Change the
1469 common function to reduce a little bit the footprint (for all functions using
1470 only the "netif" parameter).
1472 2007-10-03 Frédéric Bernon
1473 * netifapi.h, netifapi.c: add functions netifapi_netif_set_up, netifapi_netif_set_down,
1474 netifapi_autoip_start and netifapi_autoip_stop. Use a common function to reduce
1475 a little bit the footprint (for all functions using only the "netif" parameter).
1477 2007-09-15 Frédéric Bernon
1478 * udp.h, udp.c, sockets.c: Changes for "#20503 IGMP Improvement". Add IP_MULTICAST_IF
1479 option in socket API, and a new field "multicast_ip" in "struct udp_pcb" (for
1480 netconn and raw API users), only if LWIP_IGMP=1. Add getsockopt processing for
1481 IP_MULTICAST_TTL and IP_MULTICAST_IF.
1483 2007-09-10 Frédéric Bernon
1484 * snmp.h, mib2.c: enable to remove SNMP timer (which consumne several cycles
1485 even when it's not necessary). snmp_agent.txt tell to call snmp_inc_sysuptime()
1486 each 10ms (but, it's intrusive if you use sys_timeout feature). Now, you can
1487 decide to call snmp_add_sysuptime(100) each 1000ms (which is bigger "step", but
1488 call to a lower frequency). Or, you can decide to not call snmp_inc_sysuptime()
1489 or snmp_add_sysuptime(), and to define the SNMP_GET_SYSUPTIME(sysuptime) macro.
1490 This one is undefined by default in mib2.c. SNMP_GET_SYSUPTIME is called inside
1491 snmp_get_sysuptime(u32_t *value), and enable to change "sysuptime" value only
1492 when it's queried (any direct call to "sysuptime" is changed by a call to
1493 snmp_get_sysuptime).
1495 2007-09-09 Frédéric Bernon, Bill Florac
1496 * igmp.h, igmp.c, netif.h, netif.c, ip.c: To enable to have interfaces with IGMP,
1497 and others without it, there is a new NETIF_FLAG_IGMP flag to set in netif->flags
1498 if you want IGMP on an interface. igmp_stop() is now called inside netif_remove().
1499 igmp_report_groups() is now called inside netif_set_link_up() (need to have
1500 LWIP_NETIF_LINK_CALLBACK=1) to resend reports once the link is up (avoid to wait
1501 the next query message to receive the matching multicast streams).
1503 2007-09-08 Frédéric Bernon
1504 * sockets.c, ip.h, api.h, tcp.h: declare a "struct ip_pcb" which only contains
1505 IP_PCB. Add in the netconn's "pcb" union a "struct ip_pcb *ip;" (no size change).
1506 Use this new field to access to common pcb fields (ttl, tos, so_options, etc...).
1507 Enable to access to these fields with LWIP_TCP=0.
1509 2007-09-05 Frédéric Bernon
1510 * udp.c, ipv4/icmp.c, ipv4/ip.c, ipv6/icmp.c, ipv6/ip6.c, ipv4/icmp.h,
1511 ipv6/icmp.h, opt.h: Integrate "task #7272 : LWIP_ICMP option". The new option
1512 LWIP_ICMP enable/disable ICMP module inside the IP stack (enable per default).
1513 Be careful, disabling ICMP make your product non-compliant to RFC1122, but
1514 help to reduce footprint, and to reduce "visibility" on the Internet.
1516 2007-09-05 Frédéric Bernon, Bill Florac
1517 * opt.h, sys.h, tcpip.c, slipif.c, ppp.c, sys_arch.txt: Change parameters list
1518 for sys_thread_new (see "task #7252 : Create sys_thread_new_ex()"). Two new
1519 parameters have to be provided: a task name, and a task stack size. For this
1520 one, since it's platform dependant, you could define the best one for you in
1521 your lwipopts.h. For port maintainers, you can just add these new parameters
1522 in your sys_arch.c file, and but it's not mandatory, use them in your OS
1525 2007-09-05 Frédéric Bernon
1526 * inet.c, autoip.c, msg_in.c, msg_out.c, init.c: Move some build time checkings
1527 inside init.c for task #7142 "Sanity check user-configurable values".
1529 2007-09-04 Frédéric Bernon, Bill Florac
1530 * igmp.h, igmp.c, memp_std.h, memp.c, init.c, opt.h: Replace mem_malloc call by
1531 memp_malloc, and use a new MEMP_NUM_IGMP_GROUP option (see opt.h to define the
1532 value). It will avoid potential fragmentation problems, use a counter to know
1533 how many times a group is used on an netif, and free it when all applications
1534 leave it. MEMP_NUM_IGMP_GROUP got 8 as default value (and init.c got a sanity
1535 check if LWIP_IGMP!=0).
1537 2007-09-03 Frédéric Bernon
1538 * igmp.h, igmp.c, sockets.c, api_msg.c: Changes for "#20503 IGMP Improvement".
1539 Initialize igmp_mac_filter to NULL in netif_add (this field should be set in
1540 the netif's "init" function). Use the "imr_interface" field (for socket layer)
1541 and/or the "interface" field (for netconn layer), for join/leave operations.
1542 The igmp_join/leavegroup first parameter change from a netif to an ipaddr.
1543 This field could be a netif's ipaddr, or "any" (same meaning than ip_addr_isany).
1545 2007-08-30 Frédéric Bernon
1546 * Add netbuf.h, netbuf.c, Change api.h, api_lib.c: #7249 "Split netbuf functions
1547 from api/api_lib". Now netbuf API is independant of netconn, and can be used
1548 with other API (application based on raw API, or future "socket2" API). Ports
1549 maintainers just have to add src/api/netbuf.c in their makefile/projects.
1551 2007-08-30 Frédéric Bernon, Jonathan Larmour
1552 * init.c: Add first version of lwip_sanity_check for task #7142 "Sanity check
1553 user-configurable values".
1555 2007-08-29 Frédéric Bernon
1556 * igmp.h, igmp.c, tcpip.c, init.c, netif.c: change igmp_init and add igmp_start.
1557 igmp_start is call inside netif_add. Now, igmp initialization is in the same
1558 spirit than the others modules. Modify some IGMP debug traces.
1560 2007-08-29 Frédéric Bernon
1561 * Add init.h, init.c, Change opt.h, tcpip.c: Task #7213 "Add a lwip_init function"
1562 Add lwip_init function to regroup all modules initializations, and to provide
1563 a place to add code for task #7142 "Sanity check user-configurable values".
1564 Ports maintainers should remove direct initializations calls from their code,
1565 and add init.c in their makefiles. Note that lwip_init() function is called
1566 inside tcpip_init, but can also be used by raw api users since all calls are
1567 disabled when matching options are disabled. Also note that their is new options
1568 in opt.h, you should configure in your lwipopts.h (they are enabled per default).
1570 2007-08-26 Marc Boucher
1571 * api_msg.c: do_close_internal(): Reset the callbacks and arg (conn) to NULL
1572 since they can under certain circumstances be called with an invalid conn
1573 pointer after the connection has been closed (and conn has been freed).
1575 2007-08-25 Frédéric Bernon (Artem Migaev's Patch)
1576 * netif.h, netif.c: Integrate "patch #6163 : Function to check if link layer is up".
1577 Add a netif_is_link_up() function if LWIP_NETIF_LINK_CALLBACK option is set.
1579 2007-08-22 Frédéric Bernon
1580 * netif.h, netif.c, opt.h: Rename LWIP_NETIF_CALLBACK in LWIP_NETIF_STATUS_CALLBACK
1581 to be coherent with new LWIP_NETIF_LINK_CALLBACK option before next release.
1583 2007-08-22 Frédéric Bernon
1584 * tcpip.h, tcpip.c, ethernetif.c, opt.h: remove options ETHARP_TCPIP_INPUT &
1585 ETHARP_TCPIP_ETHINPUT, now, only "ethinput" code is supported, even if the
1586 name is tcpip_input (we keep the name of 1.2.0 function).
1588 2007-08-17 Jared Grubb
1589 * memp_std.h, memp.h, memp.c, mem.c, stats.c: (Task #7136) Centralize mempool
1590 settings into new memp_std.h and optional user file lwippools.h. This adds
1591 more dynamic mempools, and allows the user to create an arbitrary number of
1592 mempools for mem_malloc.
1594 2007-08-16 Marc Boucher
1595 * api_msg.c: Initialize newconn->state to NETCONN_NONE in accept_function;
1596 otherwise it was left to NETCONN_CLOSE and sent_tcp() could prematurely
1597 close the connection.
1599 2007-08-16 Marc Boucher
1600 * sockets.c: lwip_accept(): check netconn_peer() error return.
1602 2007-08-16 Marc Boucher
1603 * mem.c, mem.h: Added mem_calloc().
1605 2007-08-16 Marc Boucher
1606 * tcpip.c, tcpip.h memp.c, memp.h: Added distinct memp (MEMP_TCPIP_MSG_INPKT)
1607 for input packets to prevent floods from consuming all of MEMP_TCPIP_MSG
1608 and starving other message types.
1609 Renamed MEMP_TCPIP_MSG to MEMP_TCPIP_MSG_API
1611 2007-08-16 Marc Boucher
1612 * pbuf.c, pbuf.h, etharp.c, tcp_in.c, sockets.c: Split pbuf flags in pbuf
1613 type and flgs (later renamed to flags).
1614 Use enum pbuf_flag as pbuf_type. Renumber PBUF_FLAG_*.
1615 Improved lwip_recvfrom(). TCP push now propagated.
1617 2007-08-16 Marc Boucher
1618 * ethernetif.c, contrib/ports/various: ethbroadcast now a shared global
1621 2007-08-16 Marc Boucher
1622 * ppp_oe.c ppp_oe.h, auth.c chap.c fsm.c lcp.c ppp.c ppp.h,
1623 etharp.c ethernetif.c, etharp.h, opt.h tcpip.h, tcpip.c:
1624 Added PPPoE support and various PPP improvements.
1626 2007-07-25 Simon Goldschmidt
1627 * api_lib.c, ip_frag.c, pbuf.c, api.h, pbuf.h: Introduced pbuf_copy_partial,
1628 making netbuf_copy_partial use this function.
1630 2007-07-25 Simon Goldschmidt
1631 * tcp_in.c: Fix bug #20506: Slow start / initial congestion window starts with
1632 2 * mss (instead of 1 * mss previously) to comply with some newer RFCs and
1635 2007-07-13 Jared Grubb (integrated by Frédéric Bernon)
1636 * opt.h, netif.h, netif.c, ethernetif.c: Add new configuration option to add
1637 a link callback in the netif struct, and functions to handle it. Be carefull
1638 for port maintainers to add the NETIF_FLAG_LINK_UP flag (like in ethernetif.c)
1639 if you want to be sure to be compatible with future changes...
1641 2007-06-30 Frédéric Bernon
1642 * sockets.h, sockets.c: Implement MSG_PEEK flag for recv/recvfrom functions.
1644 2007-06-21 Simon Goldschmidt
1645 * etharp.h, etharp.c: Combined etharp_request with etharp_raw for both
1646 LWIP_AUTOIP =0 and =1 to remove redundant code.
1648 2007-06-21 Simon Goldschmidt
1649 * mem.c, memp.c, mem.h, memp.h, opt.h: task #6863: Introduced the option
1650 MEM_USE_POOLS to use 4 pools with different sized elements instead of a
1651 heap. This both prevents memory fragmentation and gives a higher speed
1652 at the cost of more memory consumption. Turned off by default.
1654 2007-06-21 Simon Goldschmidt
1655 * api_lib.c, api_msg.c, api.h, api_msg.h: Converted the length argument of
1656 netconn_write (and therefore also api_msg_msg.msg.w.len) from u16_t into
1657 int to be able to send a bigger buffer than 64K with one time (mainly
1658 used from lwip_send).
1660 2007-06-21 Simon Goldschmidt
1661 * tcp.h, api_msg.c: Moved the nagle algorithm from netconn_write/do_write
1662 into a define (tcp_output_nagle) in tcp.h to provide it to raw api users, too.
1664 2007-06-21 Simon Goldschmidt
1665 * api.h, api_lib.c, api_msg.c: Fixed bug #20021: Moved sendbuf-processing in
1666 netconn_write from api_lib.c to api_msg.c to also prevent multiple context-
1667 changes on low memory or empty send-buffer.
1669 2007-06-18 Simon Goldschmidt
1670 * etharp.c, etharp.h: Changed etharp to use a defined hardware address length
1671 of 6 to avoid loading netif->hwaddr_len every time (since this file is only
1672 used for ethernet and struct eth_addr already had a defined length of 6).
1674 2007-06-17 Simon Goldschmidt
1675 * sockets.c, sockets.h: Implemented socket options SO_NO_CHECK for UDP sockets
1676 to disable UDP checksum generation on transmit.
1678 2007-06-13 Frédéric Bernon, Simon Goldschmidt
1679 * debug.h, api_msg.c: change LWIP_ERROR to use it to check errors like invalid
1680 pointers or parameters, and let the possibility to redefined it in cc.h. Use
1681 this macro to check "conn" parameter in api_msg.c functions.
1683 2007-06-11 Simon Goldschmidt
1684 * sockets.c, sockets.h: Added UDP lite support for sockets
1686 2007-06-10 Simon Goldschmidt
1687 * udp.h, opt.h, api_msg.c, ip.c, udp.c: Included switch LWIP_UDPLITE (enabled
1688 by default) to switch off UDP-Lite support if not needed (reduces udp.c code
1691 2007-06-09 Dominik Spies (integrated by Frédéric Bernon)
1692 * autoip.h, autoip.c, dhcp.h, dhcp.c, netif.h, netif.c, etharp.h, etharp.c, opt.h:
1693 AutoIP implementation available for IPv4, with new options LWIP_AUTOIP and
1694 LWIP_DHCP_AUTOIP_COOP if you want to cooperate with DHCP. Some tips to adapt
1695 (see TODO mark in the source code).
1697 2007-06-09 Simon Goldschmidt
1698 * etharp.h, etharp.c, ethernetif.c: Modified order of parameters for
1699 etharp_output() to match netif->output so etharp_output() can be used
1700 directly as netif->output to save one function call.
1702 2007-06-08 Simon Goldschmidt
1703 * netif.h, ethernetif.c, slipif.c, loopif.c: Added define
1704 NETIF_INIT_SNMP(netif, type, speed) to initialize per-netif snmp variables,
1705 added initialization of those to ethernetif, slipif and loopif.
1707 2007-05-18 Simon Goldschmidt
1708 * opt.h, ip_frag.c, ip_frag.h, ip.c: Added option IP_FRAG_USES_STATIC_BUF
1709 (defaulting to off for now) that can be set to 0 to send fragmented
1710 packets by passing PBUF_REFs down the stack.
1712 2007-05-23 Frédéric Bernon
1713 * api_lib.c: Implement SO_RCVTIMEO for accept and recv on TCP
1714 connections, such present in patch #5959.
1716 2007-05-23 Frédéric Bernon
1717 * api.h, api_lib.c, api_msg.c, sockets.c: group the different NETCONN_UDPxxx
1718 code in only one part...
1720 2007-05-18 Simon Goldschmidt
1721 * opt.h, memp.h, memp.c: Added option MEMP_OVERFLOW_CHECK to check for memp
1722 elements to overflow. This is achieved by adding some bytes before and after
1723 each pool element (increasing their size, of course), filling them with a
1724 prominent value and checking them on freeing the element.
1725 Set it to 2 to also check every element in every pool each time memp_malloc()
1726 or memp_free() is called (slower but more helpful).
1728 2007-05-10 Simon Goldschmidt
1729 * opt.h, memp.h, memp.c, pbuf.c (see task #6831): use a new memp pool for
1730 PBUF_POOL pbufs instead of the old pool implementation in pbuf.c to reduce
1733 2007-05-11 Frédéric Bernon
1734 * sockets.c, api_lib.c, api_msg.h, api_msg.c, netifapi.h, netifapi.c, tcpip.c:
1735 Include a function pointer instead of a table index in the message to reduce
1736 footprint. Disable some part of lwip_send and lwip_sendto if some options are
1737 not set (LWIP_TCP, LWIP_UDP, LWIP_RAW).
1739 2007-05-10 Simon Goldschmidt
1740 * *.h (except netif/ppp/*.h): Included patch #5448: include '#ifdef __cplusplus
1741 \ extern "C" {' in all header files. Now you can write your application using
1742 the lwIP stack in C++ and simply #include the core files. Note I have left
1743 out the netif/ppp/*h header files for now, since I don't know which files are
1744 included by applications and which are for internal use only.
1746 2007-05-09 Simon Goldschmidt
1747 * opt.h, *.c/*.h: Included patch #5920: Create define to override C-library
1748 memcpy. 2 Defines are created: MEMCPY() for normal memcpy, SMEMCPY() for
1749 situations where some compilers might inline the copy and save a function
1750 call. Also replaced all calls to memcpy() with calls to (S)MEMCPY().
1752 2007-05-08 Simon Goldschmidt
1753 * mem.h: If MEM_LIBC_MALLOC==1, allow the defines (e.g. mem_malloc() -> malloc())
1754 to be overriden in case the C-library malloc implementation is not protected
1755 against concurrent access.
1757 2007-05-04 Simon Goldschmidt (Atte Kojo)
1758 * etharp.c: Introduced fast one-entry-cache to speed up ARP lookup when sending
1759 multiple packets to the same host.
1761 2007-05-04 Frédéric Bernon, Jonathan Larmour
1762 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fix bug #19162 "lwip_sento: a possible
1763 to corrupt remote addr/port connection state". Reduce problems "not enought memory" with
1764 netbuf (if we receive lot of datagrams). Improve lwip_sendto (only one exchange between
1765 sockets api and api_msg which run in tcpip_thread context). Add netconn_sento function.
1766 Warning, if you directly access to "fromaddr" & "fromport" field from netbuf struct,
1767 these fields are now renamed "addr" & "port".
1769 2007-04-11 Jonathan Larmour
1770 * sys.h, api_lib.c: Provide new sys_mbox_tryfetch function. Require ports to provide new
1771 sys_arch_mbox_tryfetch function to get a message if one is there, otherwise return
1772 with SYS_MBOX_EMPTY. sys_arch_mbox_tryfetch can be implemented as a function-like macro
1773 by the port in sys_arch.h if desired.
1775 2007-04-06 Frédéric Bernon, Simon Goldschmidt
1776 * opt.h, tcpip.h, tcpip.c, netifapi.h, netifapi.c: New configuration option LWIP_NETIF_API
1777 allow to use thread-safe functions to add/remove netif in list, and to start/stop dhcp
1778 clients, using new functions from netifapi.h. Disable as default (no port change to do).
1780 2007-04-05 Frédéric Bernon
1781 * sockets.c: remplace ENOBUFS errors on alloc_socket by ENFILE to be more BSD compliant.
1783 2007-04-04 Simon Goldschmidt
1784 * arch.h, api_msg.c, dhcp.c, msg_in.c, sockets.c: Introduced #define LWIP_UNUSED_ARG(x)
1785 use this for and architecture-independent form to tell the compiler you intentionally
1786 are not using this variable. Can be overriden in cc.h.
1788 2007-03-28 Frédéric Bernon
1789 * opt.h, netif.h, dhcp.h, dhcp.c: New configuration option LWIP_NETIF_HOSTNAME allow to
1790 define a hostname in netif struct (this is just a pointer, so, you can use a hardcoded
1791 string, point on one of your's ethernetif field, or alloc a string you will free yourself).
1792 It will be used by DHCP to register a client hostname, but can also be use when you call
1795 2007-03-28 Frédéric Bernon
1796 * netif.h, netif.c: A new NETIF_FLAG_ETHARP flag is defined in netif.h, to allow to
1797 initialize a network interface's flag with. It tell this interface is an ethernet
1798 device, and we can use ARP with it to do a "gratuitous ARP" (RFC 3220 "IP Mobility
1799 Support for IPv4" section 4.6) when interface is "up" with netif_set_up().
1801 2007-03-26 Frédéric Bernon, Jonathan Larmour
1802 * opt.h, tcpip.c: New configuration option LWIP_ARP allow to disable ARP init at build
1803 time if you only use PPP or SLIP. The default is enable. Note we don't have to call
1804 etharp_init in your port's initilization sequence if you use tcpip.c, because this call
1805 is done in tcpip_init function.
1807 2007-03-22 Frédéric Bernon
1808 * stats.h, stats.c, msg_in.c: Stats counters can be change to u32_t if necessary with the
1809 new option LWIP_STATS_LARGE. If you need this option, define LWIP_STATS_LARGE to 1 in
1810 your lwipopts.h. More, unused counters are not defined in the stats structs, and not
1811 display by stats_display(). Note that some options (SYS_STATS and RAW_STATS) are defined
1812 but never used. Fix msg_in.c with the correct #if test for a stat display.
1814 2007-03-21 Kieran Mansley
1815 * netif.c, netif.h: Apply patch#4197 with some changes (originator: rireland@hmgsl.com).
1816 Provides callback on netif up/down state change.
1818 2007-03-11 Frédéric Bernon, Mace Gael, Steve Reynolds
1819 * sockets.h, sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c, igmp.h, igmp.c,
1820 ip.c, netif.h, tcpip.c, opt.h:
1821 New configuration option LWIP_IGMP to enable IGMP processing. Based on only one
1822 filter per all network interfaces. Declare a new function in netif to enable to
1823 control the MAC filter (to reduce lwIP traffic processing).
1825 2007-03-11 Frédéric Bernon
1826 * tcp.h, tcp.c, sockets.c, tcp_out.c, tcp_in.c, opt.h: Keepalive values can
1827 be configured at run time with LWIP_TCP_KEEPALIVE, but don't change this
1828 unless you know what you're doing (default are RFC1122 compliant). Note
1829 that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set in seconds.
1831 2007-03-08 Frédéric Bernon
1832 * tcp.h: Keepalive values can be configured at compile time, but don't change
1833 this unless you know what you're doing (default are RFC1122 compliant).
1835 2007-03-08 Frédéric Bernon
1836 * sockets.c, api.h, api_lib.c, tcpip.c, sys.h, sys.c, err.c, opt.h:
1837 Implement LWIP_SO_RCVTIMEO configuration option to enable/disable SO_RCVTIMEO
1838 on UDP sockets/netconn.
1840 2007-03-08 Simon Goldschmidt
1841 * snmp_msg.h, msg_in.c: SNMP UDP ports can be configured at compile time.
1843 2007-03-06 Frédéric Bernon
1844 * api.h, api_lib.c, sockets.h, sockets.c, tcpip.c, sys.h, sys.c, err.h:
1845 Implement SO_RCVTIMEO on UDP sockets/netconn.
1847 2007-02-28 Kieran Mansley (based on patch from Simon Goldschmidt)
1848 * api_lib.c, tcpip.c, memp.c, memp.h: make API msg structs allocated
1849 on the stack and remove the API msg type from memp
1851 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1852 * sockets.h, sockets.c: Move socket initialization to new
1853 lwip_socket_init() function.
1854 NOTE: this changes the API with ports. Ports will have to be
1855 updated to call lwip_socket_init() now.
1857 2007-02-26 Jonathan Larmour (based on patch from Simon Goldschmidt)
1858 * api_lib.c: Use memcpy in netbuf_copy_partial.
1863 2008-03-17 Frédéric Bernon, Ed Kerekes
1864 * igmp.h, igmp.c: Fix bug #22613 "IGMP iphdr problem" (could have
1865 some problems to fill the IP header on some targets, use now the
1866 ip.h macros to do it).
1868 2008-03-13 Frédéric Bernon
1869 * sockets.c: Fix bug #22435 "lwip_recvfrom with TCP break;". Using
1870 (lwip_)recvfrom with valid "from" and "fromlen" parameters, on a
1871 TCP connection caused a crash. Note that using (lwip_)recvfrom
1872 like this is a bit slow and that using (lwip)getpeername is the
1873 good lwip way to do it (so, using recv is faster on tcp sockets).
1875 2008-03-12 Frédéric Bernon, Jonathan Larmour
1876 * api_msg.c, contrib/apps/ping.c: Fix bug #22530 "api_msg.c's
1877 recv_raw() does not consume data", and the ping sample (with
1878 LWIP_SOCKET=1, the code did the wrong supposition that lwip_recvfrom
1879 returned the IP payload, without the IP header).
1881 2008-03-04 Jonathan Larmour
1882 * mem.c, stats.c, mem.h: apply patch #6414 to avoid compiler errors
1883 and/or warnings on some systems where mem_size_t and size_t differ.
1884 * pbuf.c, ppp.c: Fix warnings on some systems with mem_malloc.
1886 2008-03-04 Kieran Mansley (contributions by others)
1887 * Numerous small compiler error/warning fixes from contributions to
1888 mailing list after 1.3.0 release candidate made.
1890 2008-01-25 Cui hengbin (integrated by Frédéric Bernon)
1891 * dns.c: Fix bug #22108 "DNS problem" caused by unaligned structures.
1893 2008-01-15 Kieran Mansley
1894 * tcp_out.c: BUG20511. Modify persist timer to start when we are
1895 prevented from sending by a small send window, not just a zero
1898 2008-01-09 Jonathan Larmour
1899 * opt.h, ip.c: Rename IP_OPTIONS define to IP_OPTIONS_ALLOWED to avoid
1900 conflict with Linux system headers.
1902 2008-01-06 Jonathan Larmour
1903 * dhcp.c: fix bug #19927: "DHCP NACK problem" by clearing any existing set IP
1904 address entirely on receiving a DHCPNAK, and restarting discovery.
1906 2007-12-21 Simon Goldschmidt
1907 * sys.h, api_lib.c, api_msg.c, sockets.c: fix bug #21698: "netconn->recv_avail
1908 is not protected" by using new macros for interlocked access to modify/test
1909 netconn->recv_avail.
1911 2007-12-20 Kieran Mansley (based on patch from Oleg Tyshev)
1912 * tcp_in.c: fix bug# 21535 (nrtx not reset correctly in SYN_SENT state)
1914 2007-12-20 Kieran Mansley (based on patch from Per-Henrik Lundbolm)
1915 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: fix bug #20199 (better handling
1916 of silly window avoidance and prevent lwIP from shrinking the window)
1918 2007-12-04 Simon Goldschmidt
1919 * tcp.c, tcp_in.c: fix bug #21699 (segment leak in ooseq processing when last
1920 data packet was lost): add assert that all segment lists are empty in
1921 tcp_pcb_remove before setting pcb to CLOSED state; don't directly set CLOSED
1922 state from LAST_ACK in tcp_process
1924 2007-12-02 Simon Goldschmidt
1925 * sockets.h: fix bug #21654: exclude definition of struct timeval from #ifndef FD_SET
1926 If including <sys/time.h> for system-struct timeval, LWIP_TIMEVAL_PRIVATE now
1927 has to be set to 0 in lwipopts.h
1929 2007-12-02 Simon Goldschmidt
1930 * api_msg.c, api_lib.c: fix bug #21656 (recvmbox problem in netconn API): always
1931 allocate a recvmbox in netconn_new_with_proto_and_callback. For a tcp-listen
1932 netconn, this recvmbox is later freed and a new mbox is allocated for acceptmbox.
1933 This is a fix for thread-safety and allocates all items needed for a netconn
1934 when the netconn is created.
1936 2007-11-30 Simon Goldschmidt
1937 * udp.c: first attempt to fix bug #21655 (DHCP doesn't work reliably with multiple
1938 netifs): if LWIP_DHCP is enabled, UDP packets to DHCP_CLIENT_PORT are passed
1939 to netif->dhcp->pcb only (if that exists) and not to any other pcb for the same
1940 port (only solution to let UDP pcbs 'bind' to a netif instead of an IP address)
1942 2007-11-27 Simon Goldschmidt
1943 * ip.c: fixed bug #21643 (udp_send/raw_send don't fail if netif is down) by
1944 letting ip_route only use netifs that are up.
1946 2007-11-27 Simon Goldschmidt
1947 * err.h, api_lib.c, api_msg.c, sockets.c: Changed error handling: ERR_MEM, ERR_BUF
1948 and ERR_RTE are seen as non-fatal, all other errors are fatal. netconns and
1949 sockets block most operations once they have seen a fatal error.
1951 2007-11-27 Simon Goldschmidt
1952 * udp.h, udp.c, dhcp.c: Implemented new function udp_sendto_if which takes the
1953 netif to send as an argument (to be able to send on netifs that are down).
1955 2007-11-26 Simon Goldschmidt
1956 * tcp_in.c: Fixed bug #21582: pcb->acked accounting can be wrong when ACKs
1959 2007-11-21 Simon Goldschmidt
1960 * tcp.h, tcp_out.c, api_msg.c: Fixed bug #20287: tcp_output_nagle sends too early
1961 Fixed the nagle algorithm; nagle now also works for all raw API applications
1962 and has to be explicitly disabled with 'tcp_pcb->flags |= TF_NODELAY'
1964 2007-11-12 Frédéric Bernon
1965 * sockets.c, api.h, api_lib.c, api_msg.h, api_msg.c: Fixed bug #20900. Now, most
1966 of the netconn_peer and netconn_addr processing is done inside tcpip_thread
1967 context in do_getaddr.
1969 2007-11-10 Simon Goldschmidt
1970 * etharp.c: Fixed bug: assert fired when MEMP_ARP_QUEUE was empty (which can
1971 happen any time). Now the packet simply isn't enqueued when out of memory.
1973 2007-11-01 Simon Goldschmidt
1974 * tcp.c, tcp_in.c: Fixed bug #21494: The send mss (pcb->mss) is set to 536 (or
1975 TCP_MSS if that is smaller) as long as no MSS option is received from the
1978 2007-11-01 Simon Goldschmidt
1979 * tcp.h, tcp.c, tcp_in.c: Fixed bug #21491: The MSS option sent (with SYN)
1980 is now based on TCP_MSS instead of pcb->mss (on passive open now effectively
1981 sending our configured TCP_MSS instead of the one received).
1983 2007-11-01 Simon Goldschmidt
1984 * tcp_in.c: Fixed bug #21181: On active open, the initial congestion window was
1985 calculated based on the configured TCP_MSS, not on the MSS option received
1988 2007-10-09 Simon Goldschmidt
1989 * udp.c, inet.c, inet.h: Fixed UDPLite: send: Checksum was always generated too
1990 short and also was generated wrong if checksum coverage != tot_len;
1991 receive: checksum was calculated wrong if checksum coverage != tot_len
1993 2007-10-08 Simon Goldschmidt
1994 * mem.c: lfree was not updated in mem_realloc!
1996 2007-10-07 Frédéric Bernon
1997 * sockets.c, api.h, api_lib.c: First step to fix "bug #20900 : Potential
1998 crash error problem with netconn_peer & netconn_addr". VERY IMPORTANT:
1999 this change cause an API breakage for netconn_addr, since a parameter
2000 type change. Any compiler should cause an error without any changes in
2001 yours netconn_peer calls (so, it can't be a "silent change"). It also
2002 reduce a little bit the footprint for socket layer (lwip_getpeername &
2003 lwip_getsockname use now a common lwip_getaddrname function since
2004 netconn_peer & netconn_addr have the same parameters).
2006 2007-09-20 Simon Goldschmidt
2007 * tcp.c: Fixed bug #21080 (tcp_bind without check pcbs in TIME_WAIT state)
2008 by checking tcp_tw_pcbs also
2010 2007-09-19 Simon Goldschmidt
2011 * icmp.c: Fixed bug #21107 (didn't reset IP TTL in ICMP echo replies)
2013 2007-09-15 Mike Kleshov
2014 * mem.c: Fixed bug #21077 (inaccuracy in calculation of lwip_stat.mem.used)
2016 2007-09-06 Frédéric Bernon
2017 * several-files: replace some #include "arch/cc.h" by "lwip/arch.h", or simply remove
2018 it as long as "lwip/opt.h" is included before (this one include "lwip/debug.h" which
2019 already include "lwip/arch.h"). Like that, default defines are provided by "lwip/arch.h"
2020 if they are not defined in cc.h, in the same spirit than "lwip/opt.h" for lwipopts.h.
2022 2007-08-30 Frédéric Bernon
2023 * igmp.h, igmp.c: Some changes to remove some redundant code, add some traces,
2024 and fix some coding style.
2026 2007-08-28 Frédéric Bernon
2027 * tcpip.c: Fix TCPIP_MSG_INPKT processing: now, tcpip_input can be used for any
2028 kind of packets. These packets are considered like Ethernet packets (payload
2029 pointing to ethhdr) if the netif got the NETIF_FLAG_ETHARP flag. Else, packets
2030 are considered like IP packets (payload pointing to iphdr).
2032 2007-08-27 Frédéric Bernon
2033 * api.h, api_lib.c, api_msg.c: First fix for "bug #20900 : Potential crash error
2034 problem with netconn_peer & netconn_addr". Introduce NETCONN_LISTEN netconn_state
2035 and remove obsolete ones (NETCONN_RECV & NETCONN_ACCEPT).
2037 2007-08-24 Kieran Mansley
2038 * inet.c Modify (acc >> 16) test to ((acc >> 16) != 0) to help buggy
2039 compiler (Paradigm C++)
2041 2007-08-09 Frédéric Bernon, Bill Florac
2042 * stats.h, stats.c, igmp.h, igmp.c, opt.h: Fix for bug #20503 : IGMP Improvement.
2043 Introduce IGMP_STATS to centralize statistics management.
2045 2007-08-09 Frédéric Bernon, Bill Florac
2046 * udp.c: Fix for bug #20503 : IGMP Improvement. Enable to receive a multicast
2047 packet on a udp pcb binded on an netif's IP address, and not on "any".
2049 2007-08-09 Frédéric Bernon, Bill Florac
2050 * igmp.h, igmp.c, ip.c: Fix minor changes from bug #20503 : IGMP Improvement.
2051 This is mainly on using lookup/lookfor, and some coding styles...
2053 2007-07-26 Frédéric Bernon (and "thedoctor")
2054 * igmp.c: Fix bug #20595 to accept IGMPv3 "Query" messages.
2056 2007-07-25 Simon Goldschmidt
2057 * api_msg.c, tcp.c: Another fix for bug #20021: by not returning an error if
2058 tcp_output fails in tcp_close, the code in do_close_internal gets simpler
2059 (tcp_output is called again later from tcp timers).
2061 2007-07-25 Simon Goldschmidt
2062 * ip_frag.c: Fixed bug #20429: use the new pbuf_copy_partial instead of the old
2063 copy_from_pbuf, which illegally modified the given pbuf.
2065 2007-07-25 Simon Goldschmidt
2066 * tcp_out.c: tcp_enqueue: pcb->snd_queuelen didn't work for chaine PBUF_RAMs:
2067 changed snd_queuelen++ to snd_queuelen += pbuf_clen(p).
2069 2007-07-24 Simon Goldschmidt
2070 * api_msg.c, tcp.c: Fix bug #20480: Check the pcb passed to tcp_listen() for the
2071 correct state (must be CLOSED).
2073 2007-07-13 Thomas Taranowski (commited by Jared Grubb)
2074 * memp.c: Fix bug #20478: memp_malloc returned NULL+MEMP_SIZE on failed
2075 allocation. It now returns NULL.
2077 2007-07-13 Frédéric Bernon
2078 * api_msg.c: Fix bug #20318: api_msg "recv" callbacks don't call pbuf_free in
2081 2007-07-13 Frédéric Bernon
2082 * api_msg.c: Fix bug #20315: possible memory leak problem if tcp_listen failed,
2083 because current code doesn't follow rawapi.txt documentation.
2085 2007-07-13 Kieran Mansley
2086 * src/core/tcp_in.c Apply patch#5741 from Oleg Tyshev to fix bug in
2087 out of sequence processing of received packets
2089 2007-07-03 Simon Goldschmidt
2090 * nearly-all-files: Added assertions where PBUF_RAM pbufs are used and an
2091 assumption is made that this pbuf is in one piece (i.e. not chained). These
2092 assumptions clash with the possibility of converting to fully pool-based
2093 pbuf implementations, where PBUF_RAM pbufs might be chained.
2095 2007-07-03 Simon Goldschmidt
2096 * api.h, api_lib.c, api_msg.c: Final fix for bug #20021 and some other problems
2097 when closing tcp netconns: removed conn->sem, less context switches when
2098 closing, both netconn_close and netconn_delete should safely close tcp
2101 2007-07-02 Simon Goldschmidt
2102 * ipv4/ip.h, ipv6/ip.h, opt.h, netif.h, etharp.h, ipv4/ip.c, netif.c, raw.c,
2103 tcp_out.c, udp.c, etharp.c: Added option LWIP_NETIF_HWADDRHINT (default=off)
2104 to cache ARP table indices with each pcb instead of single-entry cache for
2107 2007-07-02 Simon Goldschmidt
2108 * tcp.h, tcp.c, tcp_in.c, tcp_out.c: Added some ASSERTS and casts to prevent
2109 warnings when assigning to smaller types.
2111 2007-06-28 Simon Goldschmidt
2112 * tcp_out.c: Added check to prevent tcp_pcb->snd_queuelen from overflowing.
2114 2007-06-28 Simon Goldschmidt
2115 * tcp.h: Fixed bug #20287: Fixed nagle algorithm (sending was done too early if
2116 a segment contained chained pbufs)
2118 2007-06-28 Frédéric Bernon
2119 * autoip.c: replace most of rand() calls by a macro LWIP_AUTOIP_RAND which compute
2120 a "pseudo-random" value based on netif's MAC and some autoip fields. It's always
2121 possible to define this macro in your own lwipopts.h to always use C library's
2122 rand(). Note that autoip_create_rand_addr doesn't use this macro.
2124 2007-06-28 Frédéric Bernon
2125 * netifapi.h, netifapi.c, tcpip.h, tcpip.c: Update code to handle the option
2126 LWIP_TCPIP_CORE_LOCKING, and do some changes to be coherent with last modifications
2127 in api_lib/api_msg (use pointers and not type with table, etc...)
2129 2007-06-26 Simon Goldschmidt
2130 * udp.h: Fixed bug #20259: struct udp_hdr was lacking the packin defines.
2132 2007-06-25 Simon Goldschmidt
2133 * udp.c: Fixed bug #20253: icmp_dest_unreach was called with a wrong p->payload
2134 for udp packets with no matching pcb.
2136 2007-06-25 Simon Goldschmidt
2137 * udp.c: Fixed bug #20220: UDP PCB search in udp_input(): a non-local match
2138 could get udp input packets if the remote side matched.
2140 2007-06-13 Simon Goldschmidt
2141 * netif.c: Fixed bug #20180 (TCP pcbs listening on IP_ADDR_ANY could get
2142 changed in netif_set_ipaddr if previous netif->ip_addr.addr was 0.
2144 2007-06-13 Simon Goldschmidt
2145 * api_msg.c: pcb_new sets conn->err if protocol is not implemented
2146 -> netconn_new_..() does not allocate a new connection for unsupported
2149 2007-06-13 Frédéric Bernon, Simon Goldschmidt
2150 * api_lib.c: change return expression in netconn_addr and netconn_peer, because
2151 conn->err was reset to ERR_OK without any reasons (and error was lost)...
2153 2007-06-13 Frédéric Bernon, Matthias Weisser
2154 * opt.h, mem.h, mem.c, memp.c, pbuf.c, ip_frag.c, vj.c: Fix bug #20162. Rename
2155 MEM_ALIGN in LWIP_MEM_ALIGN and MEM_ALIGN_SIZE in LWIP_MEM_ALIGN_SIZE to avoid
2156 some macro names collision with some OS macros.
2158 2007-06-11 Simon Goldschmidt
2159 * udp.c: UDP Lite: corrected the use of chksum_len (based on RFC3828: if it's 0,
2160 create checksum over the complete packet. On RX, if it's < 8 (and not 0),
2161 discard the packet. Also removed the duplicate 'udphdr->chksum = 0' for both
2164 2007-06-11 Srinivas Gollakota & Oleg Tyshev
2165 * tcp_out.c: Fix for bug #20075 : "A problem with keep-alive timer and TCP flags"
2166 where TCP flags wasn't initialized in tcp_keepalive.
2168 2007-06-03 Simon Goldschmidt
2169 * udp.c: udp_input(): Input pbuf was not freed if pcb had no recv function
2170 registered, p->payload was modified without modifying p->len if sending
2171 icmp_dest_unreach() (had no negative effect but was definitively wrong).
2173 2007-06-03 Simon Goldschmidt
2174 * icmp.c: Corrected bug #19937: For responding to an icmp echo request, icmp
2175 re-used the input pbuf even if that didn't have enough space to include the
2176 link headers. Now the space is tested and a new pbuf is allocated for the
2177 echo response packet if the echo request pbuf isn't big enough.
2179 2007-06-01 Simon Goldschmidt
2180 * sockets.c: Checked in patch #5914: Moved sockopt processing into tcpip_thread.
2182 2007-05-23 Frédéric Bernon
2183 * api_lib.c, sockets.c: Fixed bug #5958 for netconn_listen (acceptmbox only
2184 allocated by do_listen if success) and netconn_accept errors handling. In
2185 most of api_lib functions, we replace some errors checkings like "if (conn==NULL)"
2186 by ASSERT, except for netconn_delete.
2188 2007-05-23 Frédéric Bernon
2189 * api_lib.c: Fixed bug #5957 "Safe-thread problem inside netconn_recv" to return
2190 an error code if it's impossible to fetch a pbuf on a TCP connection (and not
2191 directly close the recvmbox).
2193 2007-05-22 Simon Goldschmidt
2194 * tcp.c: Fixed bug #1895 (tcp_bind not correct) by introducing a list of
2195 bound but unconnected (and non-listening) tcp_pcbs.
2197 2007-05-22 Frédéric Bernon
2198 * sys.h, sys.c, api_lib.c, tcpip.c: remove sys_mbox_fetch_timeout() (was only
2199 used for LWIP_SO_RCVTIMEO option) and use sys_arch_mbox_fetch() instead of
2200 sys_mbox_fetch() in api files. Now, users SHOULD NOT use internal lwIP features
2201 like "sys_timeout" in their application threads.
2203 2007-05-22 Frédéric Bernon
2204 * api.h, api_lib.c, api_msg.h, api_msg.c: change the struct api_msg_msg to see
2205 which parameters are used by which do_xxx function, and to avoid "misusing"
2206 parameters (patch #5938).
2208 2007-05-22 Simon Goldschmidt
2209 * api_lib.c, api_msg.c, raw.c, api.h, api_msg.h, raw.h: Included patch #5938:
2210 changed raw_pcb.protocol from u16_t to u8_t since for IPv4 and IPv6, proto
2211 is only 8 bits wide. This affects the api, as there, the protocol was
2214 2007-05-18 Simon Goldschmidt
2215 * memp.c: addition to patch #5913: smaller pointer was returned but
2216 memp_memory was the same size -> did not save memory.
2218 2007-05-16 Simon Goldschmidt
2219 * loopif.c, slipif.c: Fix bug #19729: free pbuf if netif->input() returns
2222 2007-05-16 Simon Goldschmidt
2223 * api_msg.c, udp.c: If a udp_pcb has a local_ip set, check if it is the same
2224 as the one of the netif used for sending to prevent sending from old
2225 addresses after a netif address gets changed (partly fixes bug #3168).
2227 2007-05-16 Frédéric Bernon
2228 * tcpip.c, igmp.h, igmp.c: Fixed bug "#19800 : IGMP: igmp_tick() will not work
2229 with NO_SYS=1". Note that igmp_init is always in tcpip_thread (and not in
2230 tcpip_init) because we have to be sure that network interfaces are already
2231 added (mac filter is updated only in igmp_init for the moment).
2233 2007-05-16 Simon Goldschmidt
2234 * mem.c, memp.c: Removed semaphores from memp, changed sys_sem_wait calls
2235 into sys_arch_sem_wait calls to prevent timers from running while waiting
2236 for the heap. This fixes bug #19167.
2238 2007-05-13 Simon Goldschmidt
2239 * tcp.h, sockets.h, sockets.c: Fixed bug from patch #5865 by moving the defines
2240 for socket options (lwip_set/-getsockopt) used with level IPPROTO_TCP from
2243 2007-05-07 Simon Goldschmidt
2244 * mem.c: Another attempt to fix bug #17922.
2246 2007-05-04 Simon Goldschmidt
2247 * pbuf.c, pbuf.h, etharp.c: Further update to ARP queueing: Changed pbuf_copy()
2248 implementation so that it can be reused (don't allocate the target
2249 pbuf inside pbuf_copy()).
2251 2007-05-04 Simon Goldschmidt
2252 * memp.c: checked in patch #5913: in memp_malloc() we can return memp as mem
2253 to save a little RAM (next pointer of memp is not used while not in pool).
2256 * sockets.c: Fix ioctl FIONREAD when some data remains from last recv.
2259 2007-04-23 Simon Goldschmidt
2260 * loopif.c, loopif.h, opt.h, src/netif/FILES: fix bug #2595: "loopif results
2261 in NULL reference for incoming TCP packets". Loopif has to be configured
2262 (using LWIP_LOOPIF_MULTITHREADING) to directly call netif->input()
2263 (multithreading environments, e.g. netif->input() = tcpip_input()) or
2264 putting packets on a list that is fed to the stack by calling loopif_poll()
2265 (single-thread / NO_SYS / polling environment where e.g.
2266 netif->input() = ip_input).
2268 2007-04-17 Jonathan Larmour
2269 * pbuf.c: Use s32_t in pbuf_realloc(), as an s16_t can't reliably hold
2270 the difference between two u16_t's.
2271 * sockets.h: FD_SETSIZE needs to match number of sockets, which is
2272 MEMP_NUM_NETCONN in sockets.c right now.
2274 2007-04-12 Jonathan Larmour
2275 * icmp.c: Reset IP header TTL in ICMP ECHO responses (bug #19580).
2277 2007-04-12 Kieran Mansley
2278 * tcp.c, tcp_in.c, tcp_out.c, tcp.h: Modify way the retransmission
2279 timer is reset to fix bug#19434, with help from Oleg Tyshev.
2281 2007-04-11 Simon Goldschmidt
2282 * etharp.c, pbuf.c, pbuf.h: 3rd fix for bug #11400 (arp-queuing): More pbufs than
2283 previously thought need to be copied (everything but PBUF_ROM!). Cleaned up
2284 pbuf.c: removed functions no needed any more (by etharp).
2286 2007-04-11 Kieran Mansley
2287 * inet.c, ip_addr.h, sockets.h, sys.h, tcp.h: Apply patch #5745: Fix
2288 "Constant is long" warnings with 16bit compilers. Contributed by
2289 avatar@mmlab.cse.yzu.edu.tw
2291 2007-04-05 Frédéric Bernon, Jonathan Larmour
2292 * api_msg.c: Fix bug #16830: "err_tcp() posts to connection mailbox when no pend on
2293 the mailbox is active". Now, the post is only done during a connect, and do_send,
2294 do_write and do_join_leave_group don't do anything if a previous error was signaled.
2296 2007-04-03 Frédéric Bernon
2297 * ip.c: Don't set the IP_DF ("Don't fragment") flag in the IP header in IP output
2298 packets. See patch #5834.
2300 2007-03-30 Frédéric Bernon
2301 * api_msg.c: add a "pcb_new" helper function to avoid redundant code, and to add
2302 missing pcb allocations checking (in do_bind, and for each raw_new). Fix style.
2304 2007-03-30 Frédéric Bernon
2305 * most of files: prefix all debug.h define with "LWIP_" to avoid any conflict with
2306 others environment defines (these were too "generic").
2308 2007-03-28 Frédéric Bernon
2309 * api.h, api_lib.c, sockets.c: netbuf_ref doesn't check its internal pbuf_alloc call
2310 result and can cause a crash. lwip_send now check netbuf_ref result.
2312 2007-03-28 Simon Goldschmidt
2313 * sockets.c Remove "#include <errno.h>" from sockets.c to avoid multiple
2314 definition of macros (in errno.h and lwip/arch.h) if LWIP_PROVIDE_ERRNO is
2315 defined. This is the way it should have been already (looking at
2318 2007-03-28 Kieran Mansley
2319 * opt.h Change default PBUF_POOL_BUFSIZE (again) to accomodate default MSS +
2320 IP and TCP headers *and* physical link headers
2322 2007-03-26 Frédéric Bernon (based on patch from Dmitry Potapov)
2323 * api_lib.c: patch for netconn_write(), fixes a possible race condition which cause
2324 to send some garbage. It is not a definitive solution, but the patch does solve
2325 the problem for most cases.
2327 2007-03-22 Frédéric Bernon
2328 * api_msg.h, api_msg.c: Remove obsolete API_MSG_ACCEPT and do_accept (never used).
2330 2007-03-22 Frédéric Bernon
2331 * api_lib.c: somes resources couldn't be freed if there was errors during
2332 netconn_new_with_proto_and_callback.
2334 2007-03-22 Frédéric Bernon
2335 * ethernetif.c: update netif->input calls to check return value. In older ports,
2336 it's a good idea to upgrade them, even if before, there could be another problem
2337 (access to an uninitialized mailbox).
2339 2007-03-21 Simon Goldschmidt
2340 * sockets.c: fixed bug #5067 (essentialy a signed/unsigned warning fixed
2341 by casting to unsigned).
2343 2007-03-21 Frédéric Bernon
2344 * api_lib.c, api_msg.c, tcpip.c: integrate sys_mbox_fetch(conn->mbox, NULL) calls from
2345 api_lib.c to tcpip.c's tcpip_apimsg(). Now, use a local variable and not a
2346 dynamic one from memp to send tcpip_msg to tcpip_thread in a synchrone call.
2347 Free tcpip_msg from tcpip_apimsg is not done in tcpip_thread. This give a
2348 faster and more reliable communication between api_lib and tcpip.
2350 2007-03-21 Frédéric Bernon
2351 * opt.h: Add LWIP_NETIF_CALLBACK (to avoid compiler warning) and set it to 0.
2353 2007-03-21 Frédéric Bernon
2354 * api_msg.c, igmp.c, igmp.h: Fix C++ style comments
2356 2007-03-21 Kieran Mansley
2357 * opt.h Change default PBUF_POOL_BUFSIZE to accomodate default MSS +
2360 2007-03-21 Kieran Mansley
2361 * Fix all uses of pbuf_header to check the return value. In some
2362 cases just assert if it fails as I'm not sure how to fix them, but
2363 this is no worse than before when they would carry on regardless
2366 2007-03-21 Kieran Mansley
2367 * sockets.c, igmp.c, igmp.h, memp.h: Fix C++ style comments and
2368 comment out missing header include in icmp.c
2370 2007-03-20 Frédéric Bernon
2371 * memp.h, stats.c: Fix stats_display function where memp_names table wasn't
2372 synchronized with memp.h.
2374 2007-03-20 Frédéric Bernon
2375 * tcpip.c: Initialize tcpip's mbox, and verify if initialized in tcpip_input,
2376 tcpip_ethinput, tcpip_callback, tcpip_apimsg, to fix a init problem with
2377 network interfaces. Also fix a compiler warning.
2379 2007-03-20 Kieran Mansley
2380 * udp.c: Only try and use pbuf_header() to make space for headers if
2381 not a ROM or REF pbuf.
2383 2007-03-19 Frédéric Bernon
2384 * api_msg.h, api_msg.c, tcpip.h, tcpip.c: Add return types to tcpip_apimsg()
2387 2007-03-19 Frédéric Bernon
2388 * Remove unimplemented "memp_realloc" function from memp.h.
2390 2007-03-11 Simon Goldschmidt
2391 * pbuf.c: checked in patch #5796: pbuf_alloc: len field claculation caused
2394 2007-03-11 Simon Goldschmidt (based on patch from Dmitry Potapov)
2395 * api_lib.c, sockets.c, api.h, api_msg.h, sockets.h: Fixed bug #19251
2396 (missing `const' qualifier in socket functions), to get more compatible to
2397 standard POSIX sockets.
2399 2007-03-11 Frédéric Bernon (based on patch from Dmitry Potapov)
2400 * sockets.c: Add asserts inside bind, connect and sendto to check input
2401 parameters. Remove excessive set_errno() calls after get_socket(), because
2402 errno is set inside of get_socket(). Move last sock_set_errno() inside
2405 2007-03-09 Simon Goldschmidt
2406 * memp.c: Fixed bug #11400: New etharp queueing introduced bug: memp_memory
2407 was allocated too small.
2409 2007-03-06 Simon Goldschmidt
2410 * tcpip.c: Initialize dhcp timers in tcpip_thread (if LWIP_DHCP) to protect
2411 the stack from concurrent access.
2413 2007-03-06 Frédéric Bernon, Dmitry Potapov
2414 * tcpip.c, ip_frag.c, ethernetif.c: Fix some build problems, and a redundancy
2415 call to "lwip_stats.link.recv++;" in low_level_input() & ethernetif_input().
2417 2007-03-06 Simon Goldschmidt
2418 * ip_frag.c, ip_frag.h: Reduce code size: don't include code in those files
2419 if IP_FRAG == 0 and IP_REASSEMBLY == 0
2421 2007-03-06 Frédéric Bernon, Simon Goldschmidt
2422 * opt.h, ip_frag.h, tcpip.h, tcpip.c, ethernetif.c: add new configuration
2423 option named ETHARP_TCPIP_ETHINPUT, which enable the new tcpip_ethinput.
2424 Allow to do ARP processing for incoming packets inside tcpip_thread
2425 (protecting ARP layer against concurrent access). You can also disable
2426 old code using tcp_input with new define ETHARP_TCPIP_INPUT set to 0.
2427 Older ports have to use tcpip_ethinput.
2429 2007-03-06 Simon Goldschmidt (based on patch from Dmitry Potapov)
2430 * err.h, err.c: fixed compiler warning "initialization dircards qualifiers
2431 from pointer target type"
2433 2007-03-05 Frédéric Bernon
2434 * opt.h, sockets.h: add new configuration options (LWIP_POSIX_SOCKETS_IO_NAMES,
2435 ETHARP_TRUST_IP_MAC, review SO_REUSE)
2437 2007-03-04 Frédéric Bernon
2438 * api_msg.c: Remove some compiler warnings : parameter "pcb" was never
2441 2007-03-04 Frédéric Bernon
2442 * api_lib.c: Fix "[patch #5764] api_lib.c cleanup: after patch #5687" (from
2444 The api_msg struct stay on the stack (not moved to netconn struct).
2446 2007-03-04 Simon Goldschmidt (based on patch from Dmitry Potapov)
2447 * pbuf.c: Fix BUG#19168 - pbuf_free can cause deadlock (if
2448 SYS_LIGHTWEIGHT_PROT=1 & freeing PBUF_RAM when mem_sem is not available)
2449 Also fixed cast warning in pbuf_alloc()
2451 2007-03-04 Simon Goldschmidt
2452 * etharp.c, etharp.h, memp.c, memp.h, opt.h: Fix BUG#11400 - don't corrupt
2453 existing pbuf chain when enqueuing multiple pbufs to a pending ARP request
2455 2007-03-03 Frédéric Bernon
2456 * udp.c: remove obsolete line "static struct udp_pcb *pcb_cache = NULL;"
2457 It is static, and never used in udp.c except udp_init().
2459 2007-03-02 Simon Goldschmidt
2460 * tcpip.c: Moved call to ip_init(), udp_init() and tcp_init() from
2461 tcpip_thread() to tcpip_init(). This way, raw API connections can be
2462 initialized before tcpip_thread is running (e.g. before OS is started)
2464 2007-03-02 Frédéric Bernon
2465 * rawapi.txt: Fix documentation mismatch with etharp.h about etharp_tmr's call
2468 2007-02-28 Kieran Mansley
2469 * pbuf.c: Fix BUG#17645 - ensure pbuf payload pointer is not moved
2470 outside the region of the pbuf by pbuf_header()
2472 2007-02-28 Kieran Mansley
2473 * sockets.c: Fix BUG#19161 - ensure milliseconds timeout is non-zero
2474 when supplied timeout is also non-zero
2478 2006-12-05 Leon Woestenberg
2479 * CHANGELOG: Mention STABLE-1.2.0 release.
2483 2006-12-01 Christiaan Simons
2484 * mem.h, opt.h: Added MEM_LIBC_MALLOC option.
2485 Note this is a workaround. Currently I have no other options left.
2487 2006-10-26 Christiaan Simons (accepted patch by Jonathan Larmour)
2488 * ipv4/ip_frag.c: rename MAX_MTU to IP_FRAG_MAX_MTU and move define
2489 to include/lwip/opt.h.
2490 * ipv4/lwip/ip_frag.h: Remove unused IP_REASS_INTERVAL.
2491 Move IP_REASS_MAXAGE and IP_REASS_BUFSIZE to include/lwip/opt.h.
2492 * opt.h: Add above new options.
2494 2006-08-18 Christiaan Simons
2495 * tcp_{in,out}.c: added SNMP counters.
2496 * ipv4/ip.c: added SNMP counters.
2497 * ipv4/ip_frag.c: added SNMP counters.
2499 2006-08-08 Christiaan Simons
2500 * etharp.{c,h}: added etharp_find_addr() to read
2501 (stable) ethernet/IP address pair from ARP table
2503 2006-07-14 Christiaan Simons
2504 * mib_structs.c: added
2505 * include/lwip/snmp_structs.h: added
2506 * netif.{c,h}, netif/ethernetif.c: added SNMP statistics to netif struct
2508 2006-07-06 Christiaan Simons
2509 * snmp/asn1_{enc,dec}.c added
2511 * snmp/msg_{in,out}.c added
2512 * include/lwip/snmp_asn1.h added
2513 * include/lwip/snmp_msg.h added
2514 * doc/snmp_agent.txt added
2516 2006-03-29 Christiaan Simons
2517 * inet.c, inet.h: Added platform byteswap support.
2518 Added LWIP_PLATFORM_BYTESWAP define (defaults to 0) and
2519 optional LWIP_PLATFORM_HTONS(), LWIP_PLATFORM_HTONL() macros.
2523 2006-11-30 Christiaan Simons
2524 * dhcp.c: Fixed false triggers of request_timeout.
2526 2006-11-28 Christiaan Simons
2527 * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
2529 2006-10-11 Christiaan Simons
2530 * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
2531 Partially accepted patch #5449 for ANSI C compatibility / build fixes.
2532 * ipv4/lwip/ip.h ipv6/lwip/ip.h: Corrected UDP-Lite protocol
2533 identifier from 170 to 136 (bug #17574).
2535 2006-10-10 Christiaan Simons
2536 * api_msg.c: Fixed Nagle algorithm as reported by Bob Grice.
2538 2006-08-17 Christiaan Simons
2539 * udp.c: Fixed bug #17200, added check for broadcast
2540 destinations for PCBs bound to a unicast address.
2542 2006-08-07 Christiaan Simons
2543 * api_msg.c: Flushing TCP output in do_close() (bug #15926).
2545 2006-06-27 Christiaan Simons
2546 * api_msg.c: Applied patch for cold case (bug #11135).
2547 In accept_function() ensure newconn->callback is always initialized.
2549 2006-06-15 Christiaan Simons
2550 * mem.h: added MEM_SIZE_F alias to fix an ancient cold case (bug #1748),
2551 facilitate printing of mem_size_t and u16_t statistics.
2553 2006-06-14 Christiaan Simons
2554 * api_msg.c: Applied patch #5146 to handle allocation failures
2555 in accept() by Kevin Lawson.
2557 2006-05-26 Christiaan Simons
2558 * api_lib.c: Removed conn->sem creation and destruction
2559 from netconn_write() and added sys_sem_new to netconn_new_*.
2563 2006-03-03 Christiaan Simons
2564 * ipv4/ip_frag.c: Added bound-checking assertions on ip_reassbitmap
2565 access and added pbuf_alloc() return value checks.
2567 2006-01-01 Leon Woestenberg <leon.woestenberg@gmx.net>
2568 * tcp_{in,out}.c, tcp_out.c: Removed 'even sndbuf' fix in TCP, which is
2569 now handled by the checksum routine properly.
2571 2006-02-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2572 * pbuf.c: Fix alignment; pbuf_init() would not work unless
2573 pbuf_pool_memory[] was properly aligned. (Patch by Curt McDowell.)
2575 2005-12-20 Leon Woestenberg <leon.woestenberg@gmx.net>
2576 * tcp.c: Remove PCBs which stay in LAST_ACK state too long. Patch
2577 submitted by Mitrani Hiroshi.
2579 2005-12-15 Christiaan Simons
2580 * inet.c: Disabled the added summing routine to preserve code space.
2582 2005-12-14 Leon Woestenberg <leon.woestenberg@gmx.net>
2583 * tcp_in.c: Duplicate FIN ACK race condition fix by Kelvin Lawson.
2584 Added Curt McDowell's optimized checksumming routine for future
2585 inclusion. Need to create test case for unaliged, aligned, odd,
2586 even length combination of cases on various endianess machines.
2588 2005-12-09 Christiaan Simons
2589 * inet.c: Rewrote standard checksum routine in proper portable C.
2591 2005-11-25 Christiaan Simons
2592 * udp.c tcp.c: Removed SO_REUSE hack. Should reside in socket code only.
2593 * *.c: introduced cc.h LWIP_DEBUG formatters matching the u16_t, s16_t,
2594 u32_t, s32_t typedefs. This solves most debug word-length assumes.
2596 2005-07-17 Leon Woestenberg <leon.woestenberg@gmx.net>
2597 * inet.c: Fixed unaligned 16-bit access in the standard checksum
2598 routine by Peter Jolasson.
2599 * slipif.c: Fixed implementation assumption of single-pbuf datagrams.
2601 2005-02-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2602 * tcp_out.c: Fixed uninitialized 'queue' referenced in memerr branch.
2603 * tcp_{out|in}.c: Applied patch fixing unaligned access.
2605 2005-01-04 Leon Woestenberg <leon.woestenberg@gmx.net>
2606 * pbuf.c: Fixed missing semicolon after LWIP_DEBUG statement.
2608 2005-01-03 Leon Woestenberg <leon.woestenberg@gmx.net>
2609 * udp.c: UDP pcb->recv() was called even when it was NULL.
2613 2004-12-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2614 * etharp.*: Disabled multiple packets on the ARP queue.
2615 This clashes with TCP queueing.
2617 2004-11-28 Leon Woestenberg <leon.woestenberg@gmx.net>
2618 * etharp.*: Fixed race condition from ARP request to ARP timeout.
2619 Halved the ARP period, doubled the period counts.
2620 ETHARP_MAX_PENDING now should be at least 2. This prevents
2621 the counter from reaching 0 right away (which would allow
2622 too little time for ARP responses to be received).
2624 2004-11-25 Leon Woestenberg <leon.woestenberg@gmx.net>
2625 * dhcp.c: Decline messages were not multicast but unicast.
2626 * etharp.c: ETHARP_CREATE is renamed to ETHARP_TRY_HARD.
2627 Do not try hard to insert arbitrary packet's source address,
2628 etharp_ip_input() now calls etharp_update() without ETHARP_TRY_HARD.
2629 etharp_query() now always DOES call ETHARP_TRY_HARD so that users
2630 querying an address will see it appear in the cache (DHCP could
2631 suffer from this when a server invalidly gave an in-use address.)
2632 * ipv4/ip_addr.h: Renamed ip_addr_maskcmp() to _netcmp() as we are
2633 comparing network addresses (identifiers), not the network masks
2635 * ipv4/ip_addr.c: ip_addr_isbroadcast() now checks that the given
2636 IP address actually belongs to the network of the given interface.
2638 2004-11-24 Kieran Mansley <kjm25@cam.ac.uk>
2639 * tcp.c: Increment pcb->snd_buf when ACK is received in SYN_SENT state.
2643 2004-10-16 Kieran Mansley <kjm25@cam.ac.uk>
2644 * tcp.c: Add code to tcp_recved() to send an ACK (window update) immediately,
2645 even if one is already pending, if the rcv_wnd is above a threshold
2646 (currently TCP_WND/2). This avoids waiting for a timer to expire to send a
2647 delayed ACK in order to open the window if the stack is only receiving data.
2649 2004-09-12 Kieran Mansley <kjm25@cam.ac.uk>
2650 * tcp*.*: Retransmit time-out handling improvement by Sam Jansen.
2652 2004-08-20 Tony Mountifield <tony@softins.co.uk>
2653 * etharp.c: Make sure the first pbuf queued on an ARP entry
2654 is properly ref counted.
2656 2004-07-27 Tony Mountifield <tony@softins.co.uk>
2657 * debug.h: Added (int) cast in LWIP_DEBUGF() to avoid compiler
2658 warnings about comparison.
2659 * pbuf.c: Stopped compiler complaining of empty if statement
2660 when LWIP_DEBUGF() empty. Closed an unclosed comment.
2661 * tcp.c: Stopped compiler complaining of empty if statement
2662 when LWIP_DEBUGF() empty.
2663 * ip.h Corrected IPH_TOS() macro: returns a byte, so doesn't need htons().
2664 * inet.c: Added a couple of casts to quiet the compiler.
2665 No need to test isascii(c) before isdigit(c) or isxdigit(c).
2667 2004-07-22 Tony Mountifield <tony@softins.co.uk>
2668 * inet.c: Made data types consistent in inet_ntoa().
2669 Added casts for return values of checksum routines, to pacify compiler.
2670 * ip_frag.c, tcp_out.c, sockets.c, pbuf.c
2671 Small corrections to some debugging statements, to pacify compiler.
2673 2004-07-21 Tony Mountifield <tony@softins.co.uk>
2674 * etharp.c: Removed spurious semicolon and added missing end-of-comment.
2675 * ethernetif.c Updated low_level_output() to match prototype for
2676 netif->linkoutput and changed low_level_input() similarly for consistency.
2677 * api_msg.c: Changed recv_raw() from int to u8_t, to match prototype
2678 of raw_recv() in raw.h and so avoid compiler error.
2679 * sockets.c: Added trivial (int) cast to keep compiler happier.
2680 * ip.c, netif.c Changed debug statements to use the tidier ip4_addrN() macros.
2686 2004-07-05 Leon Woestenberg <leon.woestenberg@gmx.net>
2687 * sockets.*: Restructured LWIP_PRIVATE_TIMEVAL. Make sure
2688 your cc.h file defines this either 1 or 0. If non-defined,
2690 * .c: Added <string.h> and <errno.h> includes where used.
2691 * etharp.c: Made some array indices unsigned.
2693 2004-06-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2694 * netif.*: Added netif_set_up()/down().
2695 * dhcp.c: Changes to restart program flow.
2697 2004-05-07 Leon Woestenberg <leon.woestenberg@gmx.net>
2698 * etharp.c: In find_entry(), instead of a list traversal per candidate, do a
2699 single-pass lookup for different candidates. Should exploit locality.
2701 2004-04-29 Leon Woestenberg <leon.woestenberg@gmx.net>
2702 * tcp*.c: Cleaned up source comment documentation for Doxygen processing.
2703 * opt.h: ETHARP_ALWAYS_INSERT option removed to comply with ARP RFC.
2704 * etharp.c: update_arp_entry() only adds new ARP entries when adviced to by
2705 the caller. This deprecates the ETHARP_ALWAYS_INSERT overrule option.
2709 2004-04-27 Leon Woestenberg <leon.woestenberg@gmx.net>
2710 * etharp.c: Applied patch of bug #8708 by Toni Mountifield with a solution
2711 suggested by Timmy Brolin. Fix for 32-bit processors that cannot access
2712 non-aligned 32-bit words, such as soms 32-bit TCP/IP header fields. Fix
2713 is to prefix the 14-bit Ethernet headers with two padding bytes.
2715 2004-04-23 Leon Woestenberg <leon.woestenberg@gmx.net>
2716 * ip_addr.c: Fix in the ip_addr_isbroadcast() check.
2717 * etharp.c: Fixed the case where the packet that initiates the ARP request
2718 is not queued, and gets lost. Fixed the case where the packets destination
2719 address is already known; we now always queue the packet and perform an ARP
2726 * Fixed TCP bug for SYN_SENT to ESTABLISHED state transition.
2727 * Fixed TCP bug in dequeueing of FIN from out of order segment queue.
2728 * Fixed two possible NULL references in rare cases.
2734 * Fixed DHCP which did not include the IP address in DECLINE messages.
2738 * etharp.c has been hauled over a bit.
2744 * Fixed TCP bug induced by bad window resizing with unidirectional TCP traffic.
2745 * Packets sent from ARP queue had invalid source hardware address.
2749 * Pass-by ARP requests do now update the cache.
2753 * No longer dependent on ctype.h.
2754 * New socket options.
2755 * Raw IP pcb support.
2761 * Some debug formatters and casts fixed.
2762 * Numereous fixes in PPP.
2766 * DEBUGF now is LWIP_DEBUGF
2767 * pbuf_dechain() has been re-enabled.
2768 * Mentioned the changed use of CVS branches in README.
2774 * Fixed pool pbuf memory leak in pbuf_alloc().
2775 Occured if not enough PBUF_POOL pbufs for a packet pbuf chain.
2776 Reported by Savin Zlobec.
2778 * PBUF_POOL chains had their tot_len field not set for non-first
2779 pbufs. Fixed in pbuf_alloc().
2783 * Added PPP stack contributed by Marc Boucher
2787 * Now drops short packets for ICMP/UDP/TCP protocols. More robust.
2789 * ARP queueuing now queues the latest packet instead of the first.
2790 This is the RFC recommended behaviour, but can be overridden in
2797 * TCP has been fixed to deal with the new use of the pbuf->ref
2800 * DHCP dhcp_inform() crash bug fixed.
2804 * Removed pbuf_pool_free_cache and pbuf_pool_alloc_cache. Also removed
2805 pbuf_refresh(). This has sped up pbuf pool operations considerably.
2806 Implemented by David Haas.
2812 * The packet buffer implementation has been enhanced to support
2813 zero-copy and copy-on-demand for packet buffers which have their
2814 payloads in application-managed memory.
2815 Implemented by David Haas.
2817 Use PBUF_REF to make a pbuf refer to RAM. lwIP will use zero-copy
2818 if an outgoing packet can be directly sent on the link, or perform
2819 a copy-on-demand when necessary.
2821 The application can safely assume the packet is sent, and the RAM
2822 is available to the application directly after calling udp_send()
2823 or similar function.
2827 * ARP_QUEUEING should now correctly work for all cases, including
2829 Implemented by Leon Woestenberg.
2833 * IP_ADDR_ANY is no longer a NULL pointer. Instead, it is a pointer
2834 to a '0.0.0.0' IP address.
2836 * The packet buffer implementation is changed. The pbuf->ref counter
2837 meaning has changed, and several pbuf functions have been
2838 adapted accordingly.
2840 * netif drivers have to be changed to set the hardware address length field
2841 that must be initialized correctly by the driver (hint: 6 for Ethernet MAC).
2842 See the contrib/ports/c16x cs8900 driver as a driver example.
2844 * netif's have a dhcp field that must be initialized to NULL by the driver.
2845 See the contrib/ports/c16x cs8900 driver as a driver example.
2847 (0.5.x) This file has been unmaintained up to 0.6.1. All changes are
2848 logged in CVS but have not been explained here.
2850 (0.5.3) Changes since version 0.5.2
2854 * memp_malloc(MEMP_API_MSG) could fail with multiple application
2855 threads because it wasn't protected by semaphores.
2859 * struct ip_addr now packed.
2861 * The name of the time variable in arp.c has been changed to ctime
2862 to avoid conflicts with the time() function.
2864 (0.5.2) Changes since version 0.5.1
2868 * A new TCP function, tcp_tmr(), now handles both TCP timers.
2872 * A bug in tcp_parseopt() could cause the stack to hang because of a
2873 malformed TCP option.
2875 * The address of new connections in the accept() function in the BSD
2876 socket library was not handled correctly.
2878 * pbuf_dechain() did not update the ->tot_len field of the tail.
2880 * Aborted TCP connections were not handled correctly in all
2885 * All protocol header structs are now packed.
2887 * The ->len field in the tcp_seg structure now counts the actual
2888 amount of data, and does not add one for SYN and FIN segments.
2890 (0.5.1) Changes since version 0.5.0
2894 * Possible to run as a user process under Linux.
2896 * Preliminary support for cross platform packed structs.
2898 * ARP timer now implemented.
2902 * TCP output queue length was badly initialized when opening
2905 * TCP delayed ACKs were not sent correctly.
2907 * Explicit initialization of BSS segment variables.
2909 * read() in BSD socket library could drop data.
2911 * Problems with memory alignment.
2913 * Situations when all TCP buffers were used could lead to
2916 * TCP MSS option wasn't parsed correctly.
2918 * Problems with UDP checksum calculation.
2920 * IP multicast address tests had endianess problems.
2922 * ARP requests had wrong destination hardware address.
2926 * struct eth_addr changed from u16_t[3] array to u8_t[6].
2928 * A ->linkoutput() member was added to struct netif.
2930 * TCP and UDP ->dest_* struct members where changed to ->remote_*.
2932 * ntoh* macros are now null definitions for big endian CPUs.
2934 (0.5.0) Changes since version 0.4.2
2938 * Redesigned operating system emulation layer to make porting easier.
2940 * Better control over TCP output buffers.
2942 * Documenation added.
2946 * Locking issues in buffer management.
2948 * Bugfixes in the sequential API.
2950 * IP forwarding could cause memory leakage. This has been fixed.
2954 * Directory structure somewhat changed; the core/ tree has been
2957 (0.4.2) Changes since version 0.4.1
2961 * Experimental ARP implementation added.
2963 * Skeleton Ethernet driver added.
2965 * Experimental BSD socket API library added.
2969 * In very intense situations, memory leakage could occur. This has
2974 * Variables named "data" and "code" have been renamed in order to
2975 avoid name conflicts in certain compilers.
2977 * Variable++ have in appliciable cases been translated to ++variable
2978 since some compilers generate better code in the latter case.
2980 (0.4.1) Changes since version 0.4
2984 * TCP: Connection attempts time out earlier than data
2985 transmissions. Nagle algorithm implemented. Push flag set on the
2986 last segment in a burst.
2988 * UDP: experimental support for UDP-Lite extensions.
2992 * TCP: out of order segments were in some cases handled incorrectly,
2993 and this has now been fixed. Delayed acknowledgements was broken
2994 in 0.4, has now been fixed. Binding to an address that is in use
2995 now results in an error. Reset connections sometimes hung an
2996 application; this has been fixed.
2998 * Checksum calculation sometimes failed for chained pbufs with odd
2999 lengths. This has been fixed.
3001 * API: a lot of bug fixes in the API. The UDP API has been improved
3002 and tested. Error reporting and handling has been
3003 improved. Logical flaws and race conditions for incoming TCP
3004 connections has been found and removed.
3006 * Memory manager: alignment issues. Reallocating memory sometimes
3007 failed, this has been fixed.
3009 * Generic library: bcopy was flawed and has been fixed.
3013 * API: all datatypes has been changed from generic ones such as
3014 ints, to specified ones such as u16_t. Functions that return
3015 errors now have the correct type (err_t).
3017 * General: A lot of code cleaned up and debugging code removed. Many
3018 portability issues have been fixed.
3020 * The license was changed; the advertising clause was removed.
3024 * Thanks: Huge thanks go to Dagan Galarneau, Horst Garnetzke, Petri
3025 Kosunen, Mikael Caleres, and Frits Wilmink for reporting and
3028 (0.4) Changes since version 0.3.1
3030 * Memory management has been radically changed; instead of
3031 allocating memory from a shared heap, memory for objects that are
3032 rapidly allocated and deallocated is now kept in pools. Allocation
3033 and deallocation from those memory pools is very fast. The shared
3034 heap is still present but is used less frequently.
3036 * The memory, memory pool, and packet buffer subsystems now support
3037 4-, 2-, or 1-byte alignment.
3039 * "Out of memory" situations are handled in a more robust way.
3041 * Stack usage has been reduced.
3043 * Easier configuration of lwIP parameters such as memory usage,
3044 TTLs, statistics gathering, etc. All configuration parameters are
3045 now kept in a single header file "lwipopts.h".
3047 * The directory structure has been changed slightly so that all
3048 architecture specific files are kept under the src/arch
3051 * Error propagation has been improved, both in the protocol modules
3054 * The code for the RTXC architecture has been implemented, tested
3057 * Bugs have been found and corrected in the TCP, UDP, IP, API, and
3058 the Internet checksum modules.
3060 * Bugs related to porting between a 32-bit and a 16-bit architecture
3061 have been found and corrected.
3063 * The license has been changed slightly to conform more with the
3064 original BSD license, including the advertisement clause.
3066 (0.3.1) Changes since version 0.3
3068 * Fix of a fatal bug in the buffer management. Pbufs with allocated
3069 RAM never returned the RAM when the pbuf was deallocated.
3071 * TCP congestion control, window updates and retransmissions did not
3072 work correctly. This has now been fixed.
3074 * Bugfixes in the API.
3076 (0.3) Changes since version 0.2
3078 * New and improved directory structure. All include files are now
3079 kept in a dedicated include/ directory.
3081 * The API now has proper error handling. A new function,
3082 netconn_err(), now returns an error code for the connection in
3085 * Improvements in the memory management subsystem. The system now
3086 keeps a pointer to the lowest free memory block. A new function,
3087 mem_malloc2() tries to allocate memory once, and if it fails tries
3088 to free some memory and retry the allocation.
3090 * Much testing has been done with limited memory
3091 configurations. lwIP now does a better job when overloaded.
3093 * Some bugfixes and improvements to the buffer (pbuf) subsystem.
3095 * Many bugfixes in the TCP code:
3097 - Fixed a bug in tcp_close().
3099 - The TCP receive window was incorrectly closed when out of
3100 sequence segments was received. This has been fixed.
3102 - Connections are now timed-out of the FIN-WAIT-2 state.
3104 - The initial congestion window could in some cases be too
3105 large. This has been fixed.
3107 - The retransmission queue could in some cases be screwed up. This
3110 - TCP RST flag now handled correctly.
3112 - Out of sequence data was in some cases never delivered to the
3113 application. This has been fixed.
3115 - Retransmitted segments now contain the correct acknowledgment
3116 number and advertised window.
3118 - TCP retransmission timeout backoffs are not correctly computed
3119 (ala BSD). After a number of retransmissions, TCP now gives up
3122 * TCP connections now are kept on three lists, one for active
3123 connections, one for listening connections, and one for
3124 connections that are in TIME-WAIT. This greatly speeds up the fast
3125 timeout processing for sending delayed ACKs.
3127 * TCP now provides proper feedback to the application when a
3128 connection has been successfully set up.
3130 * More comments have been added to the code. The code has also been
3131 somewhat cleaned up.
3133 (0.2) Initial public release.